-88.98% is the change from 898 to 99
Calculation steps:
[( 99 - 898 ) ÷ 898] x 100 = -88.98%
Formula
Percentage change = [(99 - 898) / 898] x 100
Subtract the new number by the original number
99 - 898 = -799
-799 ÷ 898 = -0.8897550111358574
-0.8897550111358574 x 100 = -88.98%