29.98% is the change from 637 to 828
Calculation steps:
[( 828 - 637 ) ÷ 637] x 100 = 29.98%
Formula
Percentage change = [(828 - 637) / 637] x 100
Subtract the new number by the original number
828 - 637 = 191
191 ÷ 637 = 0.29984301412872844
0.29984301412872844 x 100 = 29.98%