-87.86% is the change from 519 to 63
Calculation steps:
[( 63 - 519 ) ÷ 519] x 100 = -87.86%
Formula
Percentage change = [(63 - 519) / 519] x 100
Subtract the new number by the original number
63 - 519 = -456
-456 ÷ 519 = -0.8786127167630058
-0.8786127167630058 x 100 = -87.86%