24.75% is the change from 687 to 857
Calculation steps:
[( 857 - 687 ) ÷ 687] x 100 = 24.75%
Formula
Percentage change = [(857 - 687) / 687] x 100
Subtract the new number by the original number
857 - 687 = 170
170 ÷ 687 = 0.24745269286754004
0.24745269286754004 x 100 = 24.75%