-85.81% is the change from 620 to 88
Calculation steps:
[( 88 - 620 ) ÷ 620] x 100 = -85.81%
Formula
Percentage change = [(88 - 620) / 620] x 100
Subtract the new number by the original number
88 - 620 = -532
-532 ÷ 620 = -0.8580645161290322
-0.8580645161290322 x 100 = -85.81%