-51.85% is the change from 270 to 130
Calculation steps:
[( 130 - 270 ) ÷ 270] x 100 = -51.85%
Formula
Percentage change = [(130 - 270) / 270] x 100
Subtract the new number by the original number
130 - 270 = -140
-140 ÷ 270 = -0.5185185185185185
-0.5185185185185185 x 100 = -51.85%