-98.58% is the change from 913 to 13
Calculation steps:
[( 13 - 913 ) ÷ 913] x 100 = -98.58%
Formula
Percentage change = [(13 - 913) / 913] x 100
Subtract the new number by the original number
13 - 913 = -900
-900 ÷ 913 = -0.9857612267250822
-0.9857612267250822 x 100 = -98.58%