-64.21% is the change from 271 to 97
Calculation steps:
[( 97 - 271 ) ÷ 271] x 100 = -64.21%
Formula
Percentage change = [(97 - 271) / 271] x 100
Subtract the new number by the original number
97 - 271 = -174
-174 ÷ 271 = -0.6420664206642066
-0.6420664206642066 x 100 = -64.21%