Please explain too, thank you!

The fund F has been investing in stocks and bonds. Given their strategy, an appropriate benchmark portfolio is B. The performance and weights of F and B over the last year are given in the table below Asset clasS WF WB 0.9 0.100.10 0.1 TB Stocks0.3 Bonds 0.7 Please calculate the performance of F relative B due to the difference in asset allocation skill. Please round your calculation to the nearest 2nd decimal and fill in your calculated number below. 0.05 0.05