-54.29% is the change from 315 to 144
Calculation steps:
[( 144 - 315 ) ÷ 315] x 100 = -54.29%
Formula
Percentage change = [(144 - 315) / 315] x 100
Subtract the new number by the original number
144 - 315 = -171
-171 ÷ 315 = -0.5428571428571428
-0.5428571428571428 x 100 = -54.29%