49.51% is the change from 610 to 912
Calculation steps:
[( 912 - 610 ) ÷ 610] x 100 = 49.51%
Formula
Percentage change = [(912 - 610) / 610] x 100
Subtract the new number by the original number
912 - 610 = 302
302 ÷ 610 = 0.49508196721311476
0.49508196721311476 x 100 = 49.51%