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Windsor Company is constructing a building. Construction began on February 1 and was completed on December 31. Expenditures were $1,800,000 on March 1, $1,200,000 on June 1, and $3,097,420 on December 31. Windsor Company borrowed $1,050,550 on March 1 on a 5-year, 13% note to help finance construction of the building. In addition, the company had outstanding all year a 10%, 5-year, $2,080,800 note payable and an 11%, 4-year, $3,831,200 note payable. Compute the weighted average interest rate used for interest capitalization purposes. (Round answer to 2 decimal places,... 7.50%.) Weighted average interest rate n Shot