102.22% is the change from 45 to 91
Calculation steps:
[( 91 - 45 ) ÷ 45] x 100 = 102.22%
Formula
Percentage change = [(91 - 45) / 45] x 100
Subtract the new number by the original number
91 - 45 = 46
46 ÷ 45 = 1.0222222222222221
1.0222222222222221 x 100 = 102.22%