62.4% is the change from 391 to 635
Calculation steps:
[( 635 - 391 ) ÷ 391] x 100 = 62.4%
Formula
Percentage change = [(635 - 391) / 391] x 100
Subtract the new number by the original number
635 - 391 = 244
244 ÷ 391 = 0.6240409207161125
0.6240409207161125 x 100 = 62.4%