-62.3% is the change from 610 to 230
Calculation steps:
[( 230 - 610 ) ÷ 610] x 100 = -62.3%
Formula
Percentage change = [(230 - 610) / 610] x 100
Subtract the new number by the original number
230 - 610 = -380
-380 ÷ 610 = -0.6229508196721312
-0.6229508196721312 x 100 = -62.3%