-78.97% is the change from 271 to 57
Calculation steps:
[( 57 - 271 ) ÷ 271] x 100 = -78.97%
Formula
Percentage change = [(57 - 271) / 271] x 100
Subtract the new number by the original number
57 - 271 = -214
-214 ÷ 271 = -0.7896678966789668
-0.7896678966789668 x 100 = -78.97%