-89.33% is the change from 478 to 51
Calculation steps:
[( 51 - 478 ) ÷ 478] x 100 = -89.33%
Formula
Percentage change = [(51 - 478) / 478] x 100
Subtract the new number by the original number
51 - 478 = -427
-427 ÷ 478 = -0.893305439330544
-0.893305439330544 x 100 = -89.33%