-72% is the change from 50 to 14
Calculation steps:
[( 14 - 50 ) ÷ 50] x 100 = -72%
Formula
Percentage change = [(14 - 50) / 50] x 100
Subtract the new number by the original number
14 - 50 = -36
-36 ÷ 50 = -0.72
-0.72 x 100 = -72%
Example