-98.64% is the change from 959 to 13
Calculation steps:
[( 13 - 959 ) ÷ 959] x 100 = -98.64%
Formula
Percentage change = [(13 - 959) / 959] x 100
Subtract the new number by the original number
13 - 959 = -946
-946 ÷ 959 = -0.986444212721585
-0.986444212721585 x 100 = -98.64%