126.56% is the change from 64 to 145
Calculation steps:
[( 145 - 64 ) ÷ 64] x 100 = 126.56%
Formula
Percentage change = [(145 - 64) / 64] x 100
Subtract the new number by the original number
145 - 64 = 81
81 ÷ 64 = 1.265625
1.265625 x 100 = 126.56%
Example