-88.78% is the change from 802 to 90
Calculation steps:
[( 90 - 802 ) ÷ 802] x 100 = -88.78%
Formula
Percentage change = [(90 - 802) / 802] x 100
Subtract the new number by the original number
90 - 802 = -712
-712 ÷ 802 = -0.8877805486284289
-0.8877805486284289 x 100 = -88.78%