49.02% is the change from 610 to 909
Calculation steps:
[( 909 - 610 ) ÷ 610] x 100 = 49.02%
Formula
Percentage change = [(909 - 610) / 610] x 100
Subtract the new number by the original number
909 - 610 = 299
299 ÷ 610 = 0.4901639344262295
0.4901639344262295 x 100 = 49.02%