-33.21% is the change from 271 to 181
Calculation steps:
[( 181 - 271 ) ÷ 271] x 100 = -33.21%
Formula
Percentage change = [(181 - 271) / 271] x 100
Subtract the new number by the original number
181 - 271 = -90
-90 ÷ 271 = -0.33210332103321033
-0.33210332103321033 x 100 = -33.21%