Answer: 15%
Step-by-step explanation:
Given: Sales for last month = $2,400
Sales for this month = $2,760
Increase in sales = $2,760- $2,400
= $ 360
The percent of increase in his sales from last week to this week
[tex]=\dfrac{\text{Increase in sales}}{\text{Sales in last week}}\times100\\\\=\dfrac{360}{2400}\times100\\\\=15\%[/tex]
Hence, the percent of increase in his sales from last week to this week = 15%