64% is the change from 100 to 164
Calculation steps:
[( 164 - 100 ) ÷ 100] x 100 = 64%
Formula
Percentage change = [(164 - 100) / 100] x 100
Subtract the new number by the original number
164 - 100 = 64
64 ÷ 100 = 0.64
0.64 x 100 = 64%
Example