47.36% is the change from 644 to 949
Calculation steps:
[( 949 - 644 ) ÷ 644] x 100 = 47.36%
Formula
Percentage change = [(949 - 644) / 644] x 100
Subtract the new number by the original number
949 - 644 = 305
305 ÷ 644 = 0.47360248447204967
0.47360248447204967 x 100 = 47.36%