10%
1) Since the bonus for the salesman is equivalent to 6.5% then we can write out the following, using a hypothetical sale of $10,000
[tex]10000\cdot0.065=650[/tex]2) Now considering that there was a discount of 10%, then we can write the following:
[tex]\begin{gathered} 10000\cdot(0.9)=9000 \\ 9000\cdot0.065=585 \end{gathered}[/tex]3) Now, let's turn the loss of that salesman into a percentage
[tex]\begin{gathered} 100\%-----650 \\ x-------585 \\ 650x=58500 \\ \frac{650x}{650}=\frac{58500}{650} \\ x=90\% \\ 100\%-90\%=10\% \end{gathered}[/tex]Thus, that salesperson will lose 10% as well, on his/her commission.
