-37.27% is the change from 271 to 170
Calculation steps:
[( 170 - 271 ) ÷ 271] x 100 = -37.27%
Formula
Percentage change = [(170 - 271) / 271] x 100
Subtract the new number by the original number
170 - 271 = -101
-101 ÷ 271 = -0.3726937269372694
-0.3726937269372694 x 100 = -37.27%