31.15% is the change from 610 to 800
Calculation steps:
[( 800 - 610 ) ÷ 610] x 100 = 31.15%
Formula
Percentage change = [(800 - 610) / 610] x 100
Subtract the new number by the original number
800 - 610 = 190
190 ÷ 610 = 0.3114754098360656
0.3114754098360656 x 100 = 31.15%