-41.7% is the change from 271 to 158
Calculation steps:
[( 158 - 271 ) ÷ 271] x 100 = -41.7%
Formula
Percentage change = [(158 - 271) / 271] x 100
Subtract the new number by the original number
158 - 271 = -113
-113 ÷ 271 = -0.41697416974169743
-0.41697416974169743 x 100 = -41.7%