-69.98% is the change from 663 to 199
Calculation steps:
[( 199 - 663 ) ÷ 663] x 100 = -69.98%
Formula
Percentage change = [(199 - 663) / 663] x 100
Subtract the new number by the original number
199 - 663 = -464
-464 ÷ 663 = -0.6998491704374057
-0.6998491704374057 x 100 = -69.98%