-95.83% is the change from 312 to 13
Calculation steps:
[( 13 - 312 ) ÷ 312] x 100 = -95.83%
Formula
Percentage change = [(13 - 312) / 312] x 100
Subtract the new number by the original number
13 - 312 = -299
-299 ÷ 312 = -0.9583333333333334
-0.9583333333333334 x 100 = -95.83%