2.48% is the change from 847 to 868
Calculation steps:
[( 868 - 847 ) ÷ 847] x 100 = 2.48%
Formula
Percentage change = [(868 - 847) / 847] x 100
Subtract the new number by the original number
868 - 847 = 21
21 ÷ 847 = 0.024793388429752067
0.024793388429752067 x 100 = 2.48%