Let's begin by listing out the information given to us:
Mask commission = 32% = 0.32
Shield commission = 13% = 0.13
Mask sale = $2,300
Shield sale = $1,250
[tex]\begin{gathered} TotalCommission=(MaskCommission\cdot MaskSale)+ \\ (ShieldCommission\cdot ShieldSale) \\ TotalCommission=(0.32\cdot2300)+(0.13\cdot1250)=736+162.5 \\ TotalCommission=898.5 \end{gathered}[/tex]It implies that you will receive a total commission of $898.50