-60.51% is the change from 390 to 154
Calculation steps:
[( 154 - 390 ) ÷ 390] x 100 = -60.51%
Formula
Percentage change = [(154 - 390) / 390] x 100
Subtract the new number by the original number
154 - 390 = -236
-236 ÷ 390 = -0.6051282051282051
-0.6051282051282051 x 100 = -60.51%