-98.67% is the change from 981 to 13
Calculation steps:
[( 13 - 981 ) ÷ 981] x 100 = -98.67%
Formula
Percentage change = [(13 - 981) / 981] x 100
Subtract the new number by the original number
13 - 981 = -968
-968 ÷ 981 = -0.9867482161060143
-0.9867482161060143 x 100 = -98.67%