-45.28% is the change from 519 to 284
Calculation steps:
[( 284 - 519 ) ÷ 519] x 100 = -45.28%
Formula
Percentage change = [(284 - 519) / 519] x 100
Subtract the new number by the original number
284 - 519 = -235
-235 ÷ 519 = -0.4527938342967245
-0.4527938342967245 x 100 = -45.28%