40.75% is the change from 643 to 905
Calculation steps:
[( 905 - 643 ) ÷ 643] x 100 = 40.75%
Formula
Percentage change = [(905 - 643) / 643] x 100
Subtract the new number by the original number
905 - 643 = 262
262 ÷ 643 = 0.40746500777604977
0.40746500777604977 x 100 = 40.75%