We are given that
Max's grade on the first math exam was a 94
so, first exam grade =94
His grade on his seond math exam was an 89
so, second exam grade =89
change in grade=(first exam grade)-(second exam grade)
change in grade=94-89
change in grade=5
Percentage = ( change in grade)/( first exam grade) *100
so, percentage is

so,
the percent of change in Max's grade to the nearest whole percentage was 5%..........Answer
This situation is governed by a linear equation:
Total Pay = Base Salary + Commissions, and here that equation is:
Total Pay = $150 + 0.14(Total of sales for the week).
Here, Total Pay = $150 + 0.14($6050) = $150 + $847 = $997