-33.58% is the change from 271 to 180
Calculation steps:
[( 180 - 271 ) ÷ 271] x 100 = -33.58%
Formula
Percentage change = [(180 - 271) / 271] x 100
Subtract the new number by the original number
180 - 271 = -91
-91 ÷ 271 = -0.33579335793357934
-0.33579335793357934 x 100 = -33.58%