34.35% is the change from 623 to 837
Calculation steps:
[( 837 - 623 ) ÷ 623] x 100 = 34.35%
Formula
Percentage change = [(837 - 623) / 623] x 100
Subtract the new number by the original number
837 - 623 = 214
214 ÷ 623 = 0.3434991974317817
0.3434991974317817 x 100 = 34.35%