-98.56% is the change from 902 to 13
Calculation steps:
[( 13 - 902 ) ÷ 902] x 100 = -98.56%
Formula
Percentage change = [(13 - 902) / 902] x 100
Subtract the new number by the original number
13 - 902 = -889
-889 ÷ 902 = -0.9855875831485588
-0.9855875831485588 x 100 = -98.56%