41.95% is the change from 646 to 917
Calculation steps:
[( 917 - 646 ) ÷ 646] x 100 = 41.95%
Formula
Percentage change = [(917 - 646) / 646] x 100
Subtract the new number by the original number
917 - 646 = 271
271 ÷ 646 = 0.4195046439628483
0.4195046439628483 x 100 = 41.95%