15.56% is the change from 45 to 52
Calculation steps:
[( 52 - 45 ) ÷ 45] x 100 = 15.56%
Formula
Percentage change = [(52 - 45) / 45] x 100
Subtract the new number by the original number
52 - 45 = 7
7 ÷ 45 = 0.15555555555555556
0.15555555555555556 x 100 = 15.56%