-31.25% is the change from 16 to 11
Calculation steps:
[( 11 - 16 ) ÷ 16] x 100 = -31.25%
Formula
Percentage change = [(11 - 16) / 16] x 100
Subtract the new number by the original number
11 - 16 = -5
-5 ÷ 16 = -0.3125
-0.3125 x 100 = -31.25%
Example