-27.2% is the change from 669 to 487
Calculation steps:
[( 487 - 669 ) ÷ 669] x 100 = -27.2%
Formula
Percentage change = [(487 - 669) / 669] x 100
Subtract the new number by the original number
487 - 669 = -182
-182 ÷ 669 = -0.27204783258594917
-0.27204783258594917 x 100 = -27.2%