-85.88% is the change from 503 to 71
Calculation steps:
[( 71 - 503 ) ÷ 503] x 100 = -85.88%
Formula
Percentage change = [(71 - 503) / 503] x 100
Subtract the new number by the original number
71 - 503 = -432
-432 ÷ 503 = -0.8588469184890656
-0.8588469184890656 x 100 = -85.88%