29.2% is the change from 637 to 823
Calculation steps:
[( 823 - 637 ) ÷ 637] x 100 = 29.2%
Formula
Percentage change = [(823 - 637) / 637] x 100
Subtract the new number by the original number
823 - 637 = 186
186 ÷ 637 = 0.29199372056514916
0.29199372056514916 x 100 = 29.2%