-37.13% is the change from 272 to 171
Calculation steps:
[( 171 - 272 ) ÷ 272] x 100 = -37.13%
Formula
Percentage change = [(171 - 272) / 272] x 100
Subtract the new number by the original number
171 - 272 = -101
-101 ÷ 272 = -0.3713235294117647
-0.3713235294117647 x 100 = -37.13%