-75.32% is the change from 847 to 209
Calculation steps:
[( 209 - 847 ) ÷ 847] x 100 = -75.32%
Formula
Percentage change = [(209 - 847) / 847] x 100
Subtract the new number by the original number
209 - 847 = -638
-638 ÷ 847 = -0.7532467532467533
-0.7532467532467533 x 100 = -75.32%