-95.92% is the change from 319 to 13
Calculation steps:
[( 13 - 319 ) ÷ 319] x 100 = -95.92%
Formula
Percentage change = [(13 - 319) / 319] x 100
Subtract the new number by the original number
13 - 319 = -306
-306 ÷ 319 = -0.9592476489028213
-0.9592476489028213 x 100 = -95.92%