-30.26% is the change from 271 to 189
Calculation steps:
[( 189 - 271 ) ÷ 271] x 100 = -30.26%
Formula
Percentage change = [(189 - 271) / 271] x 100
Subtract the new number by the original number
189 - 271 = -82
-82 ÷ 271 = -0.3025830258302583
-0.3025830258302583 x 100 = -30.26%