47.21% is the change from 646 to 951
Calculation steps:
[( 951 - 646 ) ÷ 646] x 100 = 47.21%
Formula
Percentage change = [(951 - 646) / 646] x 100
Subtract the new number by the original number
951 - 646 = 305
305 ÷ 646 = 0.47213622291021673
0.47213622291021673 x 100 = 47.21%