-85.22% is the change from 663 to 98
Calculation steps:
[( 98 - 663 ) ÷ 663] x 100 = -85.22%
Formula
Percentage change = [(98 - 663) / 663] x 100
Subtract the new number by the original number
98 - 663 = -565
-565 ÷ 663 = -0.8521870286576169
-0.8521870286576169 x 100 = -85.22%