-59.23% is the change from 390 to 159
Calculation steps:
[( 159 - 390 ) ÷ 390] x 100 = -59.23%
Formula
Percentage change = [(159 - 390) / 390] x 100
Subtract the new number by the original number
159 - 390 = -231
-231 ÷ 390 = -0.5923076923076923
-0.5923076923076923 x 100 = -59.23%