human
management 2019s discussion and analysis interest expense was $17 million less in 2004 than in 2003 reflecting the year over year reduction in debt of $316 million. other charges declined $30 million in 2004 due to a combination of lower environmental remediation, legal and workers compensation expenses and the absence of certain 2003 charges. other earnings were $28 million higher in 2004 due primarily to higher earnings from our equity affiliates. the effective tax rate for 2004 was 30.29% (30.29%) compared to 34.76% (34.76%) for the full year 2003. the reduction in the rate for 2004 reflects the benefit of the subsidy offered pursuant to the medicare act not being subject to tax, the continued improvement in the geographical mix of non- u.s. earnings and the favorable resolution during 2004 of matters related to two open u.s. federal income tax years. net income in 2004 totaled $683 million, an increase of $189 million over 2003, and earnings per share 2013 diluted increased $1.06 to $3.95 per share. results of business segments net sales operating income (millions) 2004 2003 2004 2003 (1) coatings $5275 $4835 $777 $719.
|  | <i>Net sales</i> | <i>Operating income</i> |
| <i>(Millions)</i> | 2004 | 2003 | 2004 | 2003<sup>(1)</sup> |
| Coatings<sup></sup> | $5,275 | $4,835 | $777 | $719 |
| Glass | 2,204 | 2,150 | 169 | 71 |
| Chemicals<sup></sup> | 2,034 | 1,771 | 291 | 228 |
chemicals 2034 1771 291 228 (1) operating income by segment for 2003 has been revised to reflect a change in the allocation method for certain pension and other postretirement benefit costs in 2004 (see note 22, 201cbusiness segment information 201d, under item 8 of this form 10-k). coatings sales increased $440 million or 9% (9%) in 2004. sales increased 6% (6%) from improved volumes across all our coatings businesses and 4% (4%) due to the positive effects of foreign currency translation, primarily from our european operations. sales declined 1% (1%) due to lower selling prices, principally in our automotive business. operating income increased $58 million in 2004. factors increasing operating income were the higher sales volume ($135 million) and the favorable effects of currency translation described above and improved manufacturing efficiencies of $20 million. factors decreasing operating income were inflationary cost increases of $82 million and lower selling prices. glass sales increased $54 million or 3% (3%) in 2004. sales increased 6% (6%) from improved volumes primarily from our performance glazings (flat glass), fiber glass, and automotive original equipment businesses net of lower volumes in our automotive replacement glass business. sales also increased 2% (2%) due to the positive effects of foreign currency translation, primarily from our european fiber glass operations. sales declined 5% (5%) due to lower selling prices across all our glass businesses. operating income in 2004 increased $98 million. factors increasing operating income were improved manufacturing efficiencies of $110 million, higher sales volume ($53 million) described above, higher equity earnings and the gains on the sale/leaseback of precious metals of $19 million. the principal factor decreasing operating income was lower selling prices. fiber glass volumes were up 15% (15%) for the year, although pricing declined. with the shift of electronic printed wiring board production to asia and the volume and pricing gains there, equity earnings from our joint venture serving that region grew in 2004. these factors combined with focused cost reductions and manufacturing efficiencies to improve the operating performance of this business, as we continue to position it for future growth in profitability. chemicals sales increased $263 million or 15% (15%) in 2004. sales increased 10% (10%) from improved volumes in our commodity and specialty businesses and 4% (4%) due to higher selling prices for our commodity products. sales also increased 1% (1%) due to the positive effects of foreign currency translation, primarily from our european operations. operating income increased $63 million in 2004. factors increasing operating income were the higher selling prices for our commodity products and the higher sales volume ($73 million) described above, improved manufacturing efficiencies of $25 million and lower environmental expenses. factors decreasing 2004 operating income were inflationary cost increases of $40 million and higher energy costs of $79 million. other significant factors the company 2019s pension and other postretirement benefit costs for 2004 were $45 million lower than in 2003. this decrease reflects the market driven growth in pension plan assets that occurred in 2003, the impact of the $140 million in cash contributed to the pension plans by the company in 2004 and the benefit of the subsidy offered pursuant to the medicare act, as discussed in note 12, 201cpension and other postretirement benefits, 201d under item 8 of this form 10-k. commitments and contingent liabilities, including environmental matters ppg is involved in a number of lawsuits and claims, both actual and potential, including some that it has asserted against others, in which substantial monetary damages are sought. see item 3, 201clegal proceedings 201d of this form 10-k and note 13, 201ccommitments and contingent liabilities, 201d under item 8 of this form 10-k for a description of certain of these lawsuits, including a description of the proposed ppg settlement arrangement for asbestos claims announced on may 14, 2002. as discussed in item 3 and note 13, although the result of any future litigation of such lawsuits and claims is inherently unpredictable, management believes that, in the aggregate, the outcome of all lawsuits and claims involving ppg, including asbestos-related claims in the event the ppg settlement arrangement described in note 13 does not become effective, will not have a material effect on ppg 2019s consolidated financial position or liquidity; however, any such outcome may be material to the results of operations of any particular period in which costs, if any, are recognized. the company has been named as a defendant, along with various other co-defendants, in a number of antitrust lawsuits filed in federal and state courts. these suits allege that ppg acted with competitors to fix prices and allocate markets in the flat glass and automotive refinish industries. 22 2005 ppg annual report and form 10-k.
Please answer the following questions with expressions if necessary.
what is the difference between the number 1 that represents 100% and the sales increase?
assistant
subtract(const_1, 2%)
human
what is the glass net sales of 2003?
assistant
2150
human
what is the product between that difference and that glass net sales of 2003?
assistant
subtract(const_1, 2%), multiply(#0, 2150)