-47.78% is the change from 270 to 141
Calculation steps:
[( 141 - 270 ) ÷ 270] x 100 = -47.78%
Formula
Percentage change = [(141 - 270) / 270] x 100
Subtract the new number by the original number
141 - 270 = -129
-129 ÷ 270 = -0.4777777777777778
-0.4777777777777778 x 100 = -47.78%