65% is the change from 100 to 165
Calculation steps:
[( 165 - 100 ) ÷ 100] x 100 = 65%
Formula
Percentage change = [(165 - 100) / 100] x 100
Subtract the new number by the original number
165 - 100 = 65
65 ÷ 100 = 0.65
0.65 x 100 = 65%
Example