128.13% is the change from 64 to 146
Calculation steps:
[( 146 - 64 ) ÷ 64] x 100 = 128.13%
Formula
Percentage change = [(146 - 64) / 64] x 100
Subtract the new number by the original number
146 - 64 = 82
82 ÷ 64 = 1.28125
1.28125 x 100 = 128.13%
Example