90.63% is the change from 64 to 122
Calculation steps:
[( 122 - 64 ) ÷ 64] x 100 = 90.63%
Formula
Percentage change = [(122 - 64) / 64] x 100
Subtract the new number by the original number
122 - 64 = 58
58 ÷ 64 = 0.90625
0.90625 x 100 = 90.63%
Example