-28.7% is the change from 669 to 477
Calculation steps:
[( 477 - 669 ) ÷ 669] x 100 = -28.7%
Formula
Percentage change = [(477 - 669) / 669] x 100
Subtract the new number by the original number
477 - 669 = -192
-192 ÷ 669 = -0.28699551569506726
-0.28699551569506726 x 100 = -28.7%