-21.25% is the change from 847 to 667
Calculation steps:
[( 667 - 847 ) ÷ 847] x 100 = -21.25%
Formula
Percentage change = [(667 - 847) / 847] x 100
Subtract the new number by the original number
667 - 847 = -180
-180 ÷ 847 = -0.21251475796930341
-0.21251475796930341 x 100 = -21.25%