-4.49% is the change from 847 to 809
Calculation steps:
[( 809 - 847 ) ÷ 847] x 100 = -4.49%
Formula
Percentage change = [(809 - 847) / 847] x 100
Subtract the new number by the original number
809 - 847 = -38
-38 ÷ 847 = -0.0448642266824085
-0.0448642266824085 x 100 = -4.49%