9.02% is the change from 820 to 894
Calculation steps:
[( 894 - 820 ) ÷ 820] x 100 = 9.02%
Formula
Percentage change = [(894 - 820) / 820] x 100
Subtract the new number by the original number
894 - 820 = 74
74 ÷ 820 = 0.09024390243902439
0.09024390243902439 x 100 = 9.02%