42.28% is the change from 641 to 912
Calculation steps:
[( 912 - 641 ) ÷ 641] x 100 = 42.28%
Formula
Percentage change = [(912 - 641) / 641] x 100
Subtract the new number by the original number
912 - 641 = 271
271 ÷ 641 = 0.42277691107644305
0.42277691107644305 x 100 = 42.28%