-53.33% is the change from 30 to 14
Calculation steps:
[( 14 - 30 ) ÷ 30] x 100 = -53.33%
Formula
Percentage change = [(14 - 30) / 30] x 100
Subtract the new number by the original number
14 - 30 = -16
-16 ÷ 30 = -0.5333333333333333
-0.5333333333333333 x 100 = -53.33%