-96.59% is the change from 440 to 15
Calculation steps:
[( 15 - 440 ) ÷ 440] x 100 = -96.59%
Formula
Percentage change = [(15 - 440) / 440] x 100
Subtract the new number by the original number
15 - 440 = -425
-425 ÷ 440 = -0.9659090909090909
-0.9659090909090909 x 100 = -96.59%