-68.91% is the change from 669 to 208
Calculation steps:
[( 208 - 669 ) ÷ 669] x 100 = -68.91%
Formula
Percentage change = [(208 - 669) / 669] x 100
Subtract the new number by the original number
208 - 669 = -461
-461 ÷ 669 = -0.6890881913303438
-0.6890881913303438 x 100 = -68.91%