1.77% is the change from 849 to 864
Calculation steps:
[( 864 - 849 ) ÷ 849] x 100 = 1.77%
Formula
Percentage change = [(864 - 849) / 849] x 100
Subtract the new number by the original number
864 - 849 = 15
15 ÷ 849 = 0.0176678445229682
0.0176678445229682 x 100 = 1.77%