18.42% is the change from 684 to 810
Calculation steps:
[( 810 - 684 ) ÷ 684] x 100 = 18.42%
Formula
Percentage change = [(810 - 684) / 684] x 100
Subtract the new number by the original number
810 - 684 = 126
126 ÷ 684 = 0.18421052631578946
0.18421052631578946 x 100 = 18.42%