-59.74% is the change from 390 to 157
Calculation steps:
[( 157 - 390 ) ÷ 390] x 100 = -59.74%
Formula
Percentage change = [(157 - 390) / 390] x 100
Subtract the new number by the original number
157 - 390 = -233
-233 ÷ 390 = -0.5974358974358974
-0.5974358974358974 x 100 = -59.74%