-99.34% is the change from 610 to 4
Calculation steps:
[( 4 - 610 ) ÷ 610] x 100 = -99.34%
Formula
Percentage change = [(4 - 610) / 610] x 100
Subtract the new number by the original number
4 - 610 = -606
-606 ÷ 610 = -0.9934426229508196
-0.9934426229508196 x 100 = -99.34%