can you please show calculations

der the following performance data for two portfolio managers (A and B) and a common benchmark portfolio: Stock Bonds Cash BENCHMARK Weight Return 0.7 -5.4% 0.2 -3.4 0.1 0.2 MANAGER A Weight Return 0.5 -4.0% 0.2 -2.2 0.3 0.2 "MANAGER B Weight Return 0.3 -5.4% 0.4 -3.4 0.3 0.2 a. Calculate (1) the overall return to the benchmark portfolio, (2) the overall return to Manager A's actual portfolio, and (3) the overall return to Manager B's actual portfolio. Briefly comment on whether these managers have under- or outperformed the benchmark fund. Round your answers to two decimal places. Use a minus sign to enter negative values, if any. Overall return Benchmark Manager A Manager B Manager A has Select the benchmark fund. Manager B has Select the benchmark fund. 5. Using attribution analysis, calculate (1) the selection effect, and (2) the allocation effect for both Manager A and Manager B. Using these numbers in conjunction with comment on whether these managers have added value through their selection skills, their allocation skills, or both. Do not round intermediate calculations. Round your answers to two decimal places. If the answer is zero, enter "0". IR b. Using attribution analysis, calculate (1) the selection effect, and (2) the allocation effect for both Manager A and Manager B. Using these numbers in conjunction with your results from Part a, comment on whether these managers have added value through their selection skills, their allocation skills, or both. Do not round intermediate calculations. Round your answers to two decimal places. If the answer is zero, enter "0". Selection effect Allocation effect Manager A Manager B Manager A has added value through his/her Select- skills. Manager B has added value through his/her -Select- skills