42.26% is the change from 646 to 919
Calculation steps:
[( 919 - 646 ) ÷ 646] x 100 = 42.26%
Formula
Percentage change = [(919 - 646) / 646] x 100
Subtract the new number by the original number
919 - 646 = 273
273 ÷ 646 = 0.42260061919504643
0.42260061919504643 x 100 = 42.26%