A household savings-account spreadsheet shows the following entries for the first day of each month: Additions withdrawals Value 148,000 Month January February March April May June July August 2,500 4,000 1,500 13,460 23,000 3,000 198,000 Required: Use the Excel function XIRR to calculate the dollar-weighted average return for this period. (Round your answer to 2 decimal places.) Dollar-weighted average 26.50%