-88.17% is the change from 431 to 51
Calculation steps:
[( 51 - 431 ) ÷ 431] x 100 = -88.17%
Formula
Percentage change = [(51 - 431) / 431] x 100
Subtract the new number by the original number
51 - 431 = -380
-380 ÷ 431 = -0.8816705336426914
-0.8816705336426914 x 100 = -88.17%