-68.63% is the change from 663 to 208
Calculation steps:
[( 208 - 663 ) ÷ 663] x 100 = -68.63%
Formula
Percentage change = [(208 - 663) / 663] x 100
Subtract the new number by the original number
208 - 663 = -455
-455 ÷ 663 = -0.6862745098039216
-0.6862745098039216 x 100 = -68.63%