-83.93% is the change from 336 to 54
Calculation steps:
[( 54 - 336 ) ÷ 336] x 100 = -83.93%
Formula
Percentage change = [(54 - 336) / 336] x 100
Subtract the new number by the original number
54 - 336 = -282
-282 ÷ 336 = -0.8392857142857143
-0.8392857142857143 x 100 = -83.93%