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page 30 of 94 are included in capital spending amounts. another example is the company 2019s decision in 2007 to contribute an additional $44.5 million ($27.3 million) to its pension plans as part of its overall debt reduction plan. based on this, our consolidated free cash flow is summarized as follows:.
| ($ in millions) | 2007 | 2006 | 2005 |
| --------- | --------- | --------- | --------- |
| Cash flows from operating activities | $673.0 | $401.4 | $558.8 |
| Incremental pension funding, net of tax | 27.3 | – | – |
| Capital spending | (308.5) | (279.6) | (291.7) |
| Proceeds for replacement of fire-damaged assets | 48.6 | 61.3 | – |
| Free cash flow | $440.4 | $183.1 | $267.1 |
based on information currently available, we estimate cash flows from operating activities for 2008 to be approximately $650 million, capital spending to be approximately $350 million and free cash flow to be in the $300 million range. capital spending of $259.9 million (net of $48.6 million in insurance recoveries) in 2007 was below depreciation and amortization expense of $281 million. we continue to invest capital in our best performing operations, including projects to increase custom can capabilities, improve beverage can and end making productivity and add more beverage can capacity in europe, as well as expenditures in the aerospace and technologies segment. of the $350 million of planned capital spending for 2008, approximately $180 million will be spent on top-line sales growth projects. debt facilities and refinancing interest-bearing debt at december 31, 2007, decreased $93.1 million to $2358.6 million from $2451.7 million at december 31, 2006. the 2007 debt decrease from 2006 was primarily attributed to debt payments offset by higher foreign exchange rates. at december 31, 2007, $705 million was available under the company 2019s multi-currency revolving credit facilities. the company also had $345 million of short-term uncommitted credit facilities available at the end of the year, of which $49.7 million was outstanding. on october 13, 2005, ball refinanced its senior secured credit facilities and during the third and fourth quarters of 2005, ball redeemed its 7.75% (7.75%) senior notes due august 2006 primarily through the drawdown of funds under the new credit facilities. the refinancing and redemption resulted in a pretax debt refinancing charge of $19.3 million ($12.3 million after tax) to reflect the call premium associated with the senior notes and the write off of unamortized debt issuance costs. the company has a receivables sales agreement that provides for the ongoing, revolving sale of a designated pool of trade accounts receivable of ball 2019s north american packaging operations, up to $250 million. the agreement qualifies as off-balance sheet financing under the provisions of statement of financial accounting standards (sfas) no. 140, as amended by sfas no. 156. net funds received from the sale of the accounts receivable totaled $170 million and $201.3 million at december 31, 2007 and 2006, respectively, and are reflected as a reduction of accounts receivable in the consolidated balance sheets. the company was not in default of any loan agreement at december 31, 2007, and has met all payment obligations. the u.s. note agreements, bank credit agreement and industrial development revenue bond agreements contain certain restrictions relating to dividends, investments, financial ratios, guarantees and the incurrence of additional indebtedness. additional details about the company 2019s receivables sales agreement and debt are available in notes 7 and 13, respectively, accompanying the consolidated financial statements within item 8 of this report. .
Please compute the result.
what was the cash flow from operations in 2007?
assistant
673.0
human
what was the cash flow from operations in 2006?
assistant
401.4
human
what is the difference?
assistant
271.6
human
what is the percent change?
assistant
0.67663