40.28% is the change from 643 to 902
Calculation steps:
[( 902 - 643 ) ÷ 643] x 100 = 40.28%
Formula
Percentage change = [(902 - 643) / 643] x 100
Subtract the new number by the original number
902 - 643 = 259
259 ÷ 643 = 0.40279937791601866
0.40279937791601866 x 100 = 40.28%