-70.59% is the change from 663 to 195
Calculation steps:
[( 195 - 663 ) ÷ 663] x 100 = -70.59%
Formula
Percentage change = [(195 - 663) / 663] x 100
Subtract the new number by the original number
195 - 663 = -468
-468 ÷ 663 = -0.7058823529411765
-0.7058823529411765 x 100 = -70.59%