9.71% is the change from 824 to 904
Calculation steps:
[( 904 - 824 ) ÷ 824] x 100 = 9.71%
Formula
Percentage change = [(904 - 824) / 824] x 100
Subtract the new number by the original number
904 - 824 = 80
80 ÷ 824 = 0.0970873786407767
0.0970873786407767 x 100 = 9.71%