75.56% is the change from 45 to 79
Calculation steps:
[( 79 - 45 ) ÷ 45] x 100 = 75.56%
Formula
Percentage change = [(79 - 45) / 45] x 100
Subtract the new number by the original number
79 - 45 = 34
34 ÷ 45 = 0.7555555555555555
0.7555555555555555 x 100 = 75.56%