48.14% is the change from 646 to 957
Calculation steps:
[( 957 - 646 ) ÷ 646] x 100 = 48.14%
Formula
Percentage change = [(957 - 646) / 646] x 100
Subtract the new number by the original number
957 - 646 = 311
311 ÷ 646 = 0.48142414860681115
0.48142414860681115 x 100 = 48.14%