-47.98% is the change from 519 to 270
Calculation steps:
[( 270 - 519 ) ÷ 519] x 100 = -47.98%
Formula
Percentage change = [(270 - 519) / 519] x 100
Subtract the new number by the original number
270 - 519 = -249
-249 ÷ 519 = -0.4797687861271676
-0.4797687861271676 x 100 = -47.98%