-50.92% is the change from 271 to 133
Calculation steps:
[( 133 - 271 ) ÷ 271] x 100 = -50.92%
Formula
Percentage change = [(133 - 271) / 271] x 100
Subtract the new number by the original number
133 - 271 = -138
-138 ÷ 271 = -0.5092250922509225
-0.5092250922509225 x 100 = -50.92%