-28.4% is the change from 669 to 479
Calculation steps:
[( 479 - 669 ) ÷ 669] x 100 = -28.4%
Formula
Percentage change = [(479 - 669) / 669] x 100
Subtract the new number by the original number
479 - 669 = -190
-190 ÷ 669 = -0.28400597907324365
-0.28400597907324365 x 100 = -28.4%