54.5% is the change from 644 to 995
Calculation steps:
[( 995 - 644 ) ÷ 644] x 100 = 54.5%
Formula
Percentage change = [(995 - 644) / 644] x 100
Subtract the new number by the original number
995 - 644 = 351
351 ÷ 644 = 0.5450310559006211
0.5450310559006211 x 100 = 54.5%