-99.36% is the change from 628 to 4
Calculation steps:
[( 4 - 628 ) ÷ 628] x 100 = -99.36%
Formula
Percentage change = [(4 - 628) / 628] x 100
Subtract the new number by the original number
4 - 628 = -624
-624 ÷ 628 = -0.9936305732484076
-0.9936305732484076 x 100 = -99.36%