普通股10*(1%2B3%)/98%2B3%=0.1351
债券 10%*(1-25%)/(1-2%)=0.0765
借款 9%*(1-25%)=0.0675
甲 11%*(1-25%)/(1-2%)=0.0842,12*(1%2B4%)/98%2B4%=0.1673
乙11%*(1-25%)/(1-2%)=0.0842,12*(1%2B3%)/98%2B3%=0.1561
13.51%*600/1500%2B7.65%*400/1500%2B6.75%*200/1500%2B8.42%*300/1500=0.10028
你一下,依次计算一下