-83.24% is the change from 519 to 87
Calculation steps:
[( 87 - 519 ) ÷ 519] x 100 = -83.24%
Formula
Percentage change = [(87 - 519) / 519] x 100
Subtract the new number by the original number
87 - 519 = -432
-432 ÷ 519 = -0.8323699421965318
-0.8323699421965318 x 100 = -83.24%