-79.44% is the change from 428 to 88
Calculation steps:
[( 88 - 428 ) ÷ 428] x 100 = -79.44%
Formula
Percentage change = [(88 - 428) / 428] x 100
Subtract the new number by the original number
88 - 428 = -340
-340 ÷ 428 = -0.794392523364486
-0.794392523364486 x 100 = -79.44%