-37.36% is the change from 273 to 171
Calculation steps:
[( 171 - 273 ) ÷ 273] x 100 = -37.36%
Formula
Percentage change = [(171 - 273) / 273] x 100
Subtract the new number by the original number
171 - 273 = -102
-102 ÷ 273 = -0.37362637362637363
-0.37362637362637363 x 100 = -37.36%