40.34% is the change from 642 to 901
Calculation steps:
[( 901 - 642 ) ÷ 642] x 100 = 40.34%
Formula
Percentage change = [(901 - 642) / 642] x 100
Subtract the new number by the original number
901 - 642 = 259
259 ÷ 642 = 0.40342679127725856
0.40342679127725856 x 100 = 40.34%