-43.88% is the change from 850 to 477
Calculation steps:
[( 477 - 850 ) ÷ 850] x 100 = -43.88%
Formula
Percentage change = [(477 - 850) / 850] x 100
Subtract the new number by the original number
477 - 850 = -373
-373 ÷ 850 = -0.4388235294117647
-0.4388235294117647 x 100 = -43.88%