-69.66% is the change from 290 to 88
Calculation steps:
[( 88 - 290 ) ÷ 290] x 100 = -69.66%
Formula
Percentage change = [(88 - 290) / 290] x 100
Subtract the new number by the original number
88 - 290 = -202
-202 ÷ 290 = -0.696551724137931
-0.696551724137931 x 100 = -69.66%