-85.2% is the change from 662 to 98
Calculation steps:
[( 98 - 662 ) ÷ 662] x 100 = -85.2%
Formula
Percentage change = [(98 - 662) / 662] x 100
Subtract the new number by the original number
98 - 662 = -564
-564 ÷ 662 = -0.851963746223565
-0.851963746223565 x 100 = -85.2%