-79.94% is the change from 663 to 133
Calculation steps:
[( 133 - 663 ) ÷ 663] x 100 = -79.94%
Formula
Percentage change = [(133 - 663) / 663] x 100
Subtract the new number by the original number
133 - 663 = -530
-530 ÷ 663 = -0.799396681749623
-0.799396681749623 x 100 = -79.94%