Answer:
Change in sales=$2,400
Explanation:
Calculation for the change in sales from January to February
First step is to find the total sales in January
Total sales in January=60*$500
Total sales in January=$30,000
Second step is to find the selling price in February
Selling price in February=$500+$500*20%
Selling price in February=$500+$500*0.2
Selling price in February=$500+$100
Selling price in February=$600
Third step is to find the Number of purchase in February
Number of purchase in February=60-60*10%
Number of purchase in February=60-60*0.1
Number of purchase in February=60-6
Number of purchase in February=54
Fourth step is for us to find the sales in February by multiplying the number of purchase by the selling price in February
Sales in February=54*$600
Sales in February=$32,400
Last step is to the change in sales from January to February
Using this formula
Change in sales=Sales in February-total sales in January
Change in sales=$32,400-$30,000
Change in sales=$2,400
Therefore the change in sales from January to February will be $2,400
