-81.38% is the change from 290 to 54
Calculation steps:
[( 54 - 290 ) ÷ 290] x 100 = -81.38%
Formula
Percentage change = [(54 - 290) / 290] x 100
Subtract the new number by the original number
54 - 290 = -236
-236 ÷ 290 = -0.8137931034482758
-0.8137931034482758 x 100 = -81.38%