-96.72% is the change from 519 to 17
Calculation steps:
[( 17 - 519 ) ÷ 519] x 100 = -96.72%
Formula
Percentage change = [(17 - 519) / 519] x 100
Subtract the new number by the original number
17 - 519 = -502
-502 ÷ 519 = -0.9672447013487476
-0.9672447013487476 x 100 = -96.72%