-60.1% is the change from 391 to 156
Calculation steps:
[( 156 - 391 ) ÷ 391] x 100 = -60.1%
Formula
Percentage change = [(156 - 391) / 391] x 100
Subtract the new number by the original number
156 - 391 = -235
-235 ÷ 391 = -0.6010230179028133
-0.6010230179028133 x 100 = -60.1%