49.75% is the change from 607 to 909
Calculation steps:
[( 909 - 607 ) ÷ 607] x 100 = 49.75%
Formula
Percentage change = [(909 - 607) / 607] x 100
Subtract the new number by the original number
909 - 607 = 302
302 ÷ 607 = 0.4975288303130148
0.4975288303130148 x 100 = 49.75%