-19.13% is the change from 847 to 685
Calculation steps:
[( 685 - 847 ) ÷ 847] x 100 = -19.13%
Formula
Percentage change = [(685 - 847) / 847] x 100
Subtract the new number by the original number
685 - 847 = -162
-162 ÷ 847 = -0.1912632821723731
-0.1912632821723731 x 100 = -19.13%