-89.26% is the change from 503 to 54
Calculation steps:
[( 54 - 503 ) ÷ 503] x 100 = -89.26%
Formula
Percentage change = [(54 - 503) / 503] x 100
Subtract the new number by the original number
54 - 503 = -449
-449 ÷ 503 = -0.8926441351888668
-0.8926441351888668 x 100 = -89.26%