-52.77% is the change from 271 to 128
Calculation steps:
[( 128 - 271 ) ÷ 271] x 100 = -52.77%
Formula
Percentage change = [(128 - 271) / 271] x 100
Subtract the new number by the original number
128 - 271 = -143
-143 ÷ 271 = -0.5276752767527675
-0.5276752767527675 x 100 = -52.77%