-95.44% is the change from 285 to 13
Calculation steps:
[( 13 - 285 ) ÷ 285] x 100 = -95.44%
Formula
Percentage change = [(13 - 285) / 285] x 100
Subtract the new number by the original number
13 - 285 = -272
-272 ÷ 285 = -0.9543859649122807
-0.9543859649122807 x 100 = -95.44%