46.26% is the change from 642 to 939
Calculation steps:
[( 939 - 642 ) ÷ 642] x 100 = 46.26%
Formula
Percentage change = [(939 - 642) / 642] x 100
Subtract the new number by the original number
939 - 642 = 297
297 ÷ 642 = 0.46261682242990654
0.46261682242990654 x 100 = 46.26%