Aboat salesperson earns a 2.5% commission on the sale of each boat find the commision earned on a boat that sells for 18,500

100% = 1.0
2.5% = 0.025

So now we know the decimal that corresponds to 2.5%, so all we have to do is multiply the price of the boat by this value in order to find the commission earned:

18 500 x 0.025 = $462.50

Whenever you need to find the percentage OF a number (often money), you just convert that percentage to a decimal (just move the decimal to the left twice so 40% becomes 0.40, 10.5% becomes 0.105, 2% becomes 0.02, etc) and MULTIPLY that decimal by the amount/number you need to find the percentage of.

For example, find the 20% commission of a $10,000 car sale
Calculation:
0.20x$10000 = $2000

the commission would be $2000

That’s how you do it. I hope that helps. You should be able to solve it on your own now.