-4.72% is the change from 847 to 807
Calculation steps:
[( 807 - 847 ) ÷ 847] x 100 = -4.72%
Formula
Percentage change = [(807 - 847) / 847] x 100
Subtract the new number by the original number
807 - 847 = -40
-40 ÷ 847 = -0.047225501770956316
-0.047225501770956316 x 100 = -4.72%