-50.37% is the change from 669 to 332
Calculation steps:
[( 332 - 669 ) ÷ 669] x 100 = -50.37%
Formula
Percentage change = [(332 - 669) / 669] x 100
Subtract the new number by the original number
332 - 669 = -337
-337 ÷ 669 = -0.5037369207772795
-0.5037369207772795 x 100 = -50.37%