Question 1038977
First we have to find out what his break-even point is 
10% X = 1750 + 1.5% X
Here we have to calculate X

We can rewrite the equation as follows:

.10x = 1750 + .015X

.08X = 1750 

X = 1750/.08  = around $20588
If he sells $20588 every month he can choose any of the plan and still make the same amount of commission. However if he sells more than $20588, he is better to get the 10% commission instead of only 1.5%.

Therefore as long as the sales are less than $20588, he is better off with $1750 plus 1.5% but if the sales are greater than $20588, he should go with 10%