50.16% is the change from 612 to 919
Calculation steps:
[( 919 - 612 ) ÷ 612] x 100 = 50.16%
Formula
Percentage change = [(919 - 612) / 612] x 100
Subtract the new number by the original number
919 - 612 = 307
307 ÷ 612 = 0.5016339869281046
0.5016339869281046 x 100 = 50.16%