3.66% is the change from 819 to 849
Calculation steps:
[( 849 - 819 ) ÷ 819] x 100 = 3.66%
Formula
Percentage change = [(849 - 819) / 819] x 100
Subtract the new number by the original number
849 - 819 = 30
30 ÷ 819 = 0.03663003663003663
0.03663003663003663 x 100 = 3.66%