19.3% is the change from 684 to 816
Calculation steps:
[( 816 - 684 ) ÷ 684] x 100 = 19.3%
Formula
Percentage change = [(816 - 684) / 684] x 100
Subtract the new number by the original number
816 - 684 = 132
132 ÷ 684 = 0.19298245614035087
0.19298245614035087 x 100 = 19.3%