50.9% is the change from 611 to 922
Calculation steps:
[( 922 - 611 ) ÷ 611] x 100 = 50.9%
Formula
Percentage change = [(922 - 611) / 611] x 100
Subtract the new number by the original number
922 - 611 = 311
311 ÷ 611 = 0.5090016366612111
0.5090016366612111 x 100 = 50.9%