In solution, under the heading Incremental cashflows and NPV, 10 year annuity factor is given as 6.33. How is that calculated?
Hi - this looks like an annuity payable in advance at 12% for 10 years. According to tables a(10) @12% = 5.65 (ie in arrears). So 5.65 *1.12 = 6.33 (in advance)