49.18% is the change from 610 to 910
Calculation steps:
[( 910 - 610 ) ÷ 610] x 100 = 49.18%
Formula
Percentage change = [(910 - 610) / 610] x 100
Subtract the new number by the original number
910 - 610 = 300
300 ÷ 610 = 0.4918032786885246
0.4918032786885246 x 100 = 49.18%