Deposits to accumulate future sums For the case shown in the following table, determine the amount of the equal, end-of-year deposits necessary to accumulate the given sum at the end of the specified period, assuming the stated annual interest rate. (Click on the icon here in order to copy the contents of the data table below ihto a spreadsheet.) Sum to be accumulated $21000 Accumulation period (years) Interest rate The amount of the end-of-year annual deposit is (Round to the nearest cont.)