-54.07% is the change from 270 to 124
Calculation steps:
[( 124 - 270 ) ÷ 270] x 100 = -54.07%
Formula
Percentage change = [(124 - 270) / 270] x 100
Subtract the new number by the original number
124 - 270 = -146
-146 ÷ 270 = -0.5407407407407407
-0.5407407407407407 x 100 = -54.07%