8.74% is the change from 847 to 921
Calculation steps:
[( 921 - 847 ) ÷ 847] x 100 = 8.74%
Formula
Percentage change = [(921 - 847) / 847] x 100
Subtract the new number by the original number
921 - 847 = 74
74 ÷ 847 = 0.08736717827626919
0.08736717827626919 x 100 = 8.74%