23.47% is the change from 686 to 847
Calculation steps:
[( 847 - 686 ) ÷ 686] x 100 = 23.47%
Formula
Percentage change = [(847 - 686) / 686] x 100
Subtract the new number by the original number
847 - 686 = 161
161 ÷ 686 = 0.23469387755102042
0.23469387755102042 x 100 = 23.47%