-82.5% is the change from 663 to 116
Calculation steps:
[( 116 - 663 ) ÷ 663] x 100 = -82.5%
Formula
Percentage change = [(116 - 663) / 663] x 100
Subtract the new number by the original number
116 - 663 = -547
-547 ÷ 663 = -0.8250377073906485
-0.8250377073906485 x 100 = -82.5%