61% is the change from 100 to 161
Calculation steps:
[( 161 - 100 ) ÷ 100] x 100 = 61%
Formula
Percentage change = [(161 - 100) / 100] x 100
Subtract the new number by the original number
161 - 100 = 61
61 ÷ 100 = 0.61
0.61 x 100 = 61%
Example