-18.75% is the change from 16 to 13
Calculation steps:
[( 13 - 16 ) ÷ 16] x 100 = -18.75%
Formula
Percentage change = [(13 - 16) / 16] x 100
Subtract the new number by the original number
13 - 16 = -3
-3 ÷ 16 = -0.1875
-0.1875 x 100 = -18.75%
Example