34.03% is the change from 623 to 835
Calculation steps:
[( 835 - 623 ) ÷ 623] x 100 = 34.03%
Formula
Percentage change = [(835 - 623) / 623] x 100
Subtract the new number by the original number
835 - 623 = 212
212 ÷ 623 = 0.3402889245585875
0.3402889245585875 x 100 = 34.03%