-64.28% is the change from 669 to 239
Calculation steps:
[( 239 - 669 ) ÷ 669] x 100 = -64.28%
Formula
Percentage change = [(239 - 669) / 669] x 100
Subtract the new number by the original number
239 - 669 = -430
-430 ÷ 669 = -0.6427503736920778
-0.6427503736920778 x 100 = -64.28%