45.36% is the change from 646 to 939
Calculation steps:
[( 939 - 646 ) ÷ 646] x 100 = 45.36%
Formula
Percentage change = [(939 - 646) / 646] x 100
Subtract the new number by the original number
939 - 646 = 293
293 ÷ 646 = 0.4535603715170279
0.4535603715170279 x 100 = 45.36%