20.67% is the change from 687 to 829
Calculation steps:
[( 829 - 687 ) ÷ 687] x 100 = 20.67%
Formula
Percentage change = [(829 - 687) / 687] x 100
Subtract the new number by the original number
829 - 687 = 142
142 ÷ 687 = 0.2066957787481805
0.2066957787481805 x 100 = 20.67%