-88.41% is the change from 440 to 51
Calculation steps:
[( 51 - 440 ) ÷ 440] x 100 = -88.41%
Formula
Percentage change = [(51 - 440) / 440] x 100
Subtract the new number by the original number
51 - 440 = -389
-389 ÷ 440 = -0.884090909090909
-0.884090909090909 x 100 = -88.41%