20.91% is the change from 684 to 827
Calculation steps:
[( 827 - 684 ) ÷ 684] x 100 = 20.91%
Formula
Percentage change = [(827 - 684) / 684] x 100
Subtract the new number by the original number
827 - 684 = 143
143 ÷ 684 = 0.20906432748538012
0.20906432748538012 x 100 = 20.91%