34.46% is the change from 624 to 839
Calculation steps:
[( 839 - 624 ) ÷ 624] x 100 = 34.46%
Formula
Percentage change = [(839 - 624) / 624] x 100
Subtract the new number by the original number
839 - 624 = 215
215 ÷ 624 = 0.34455128205128205
0.34455128205128205 x 100 = 34.46%