-98.57% is the change from 912 to 13
Calculation steps:
[( 13 - 912 ) ÷ 912] x 100 = -98.57%
Formula
Percentage change = [(13 - 912) / 912] x 100
Subtract the new number by the original number
13 - 912 = -899
-899 ÷ 912 = -0.9857456140350878
-0.9857456140350878 x 100 = -98.57%