-53.57% is the change from 336 to 156
Calculation steps:
[( 156 - 336 ) ÷ 336] x 100 = -53.57%
Formula
Percentage change = [(156 - 336) / 336] x 100
Subtract the new number by the original number
156 - 336 = -180
-180 ÷ 336 = -0.5357142857142857
-0.5357142857142857 x 100 = -53.57%