50.12% is the change from 407 to 611
Calculation steps:
[( 611 - 407 ) ÷ 407] x 100 = 50.12%
Formula
Percentage change = [(611 - 407) / 407] x 100
Subtract the new number by the original number
611 - 407 = 204
204 ÷ 407 = 0.5012285012285013
0.5012285012285013 x 100 = 50.12%