-77.89% is the change from 398 to 88
Calculation steps:
[( 88 - 398 ) ÷ 398] x 100 = -77.89%
Formula
Percentage change = [(88 - 398) / 398] x 100
Subtract the new number by the original number
88 - 398 = -310
-310 ÷ 398 = -0.7788944723618091
-0.7788944723618091 x 100 = -77.89%