40.44% is the change from 643 to 903
Calculation steps:
[( 903 - 643 ) ÷ 643] x 100 = 40.44%
Formula
Percentage change = [(903 - 643) / 643] x 100
Subtract the new number by the original number
903 - 643 = 260
260 ÷ 643 = 0.40435458786936235
0.40435458786936235 x 100 = 40.44%