-47.88% is the change from 919 to 479
Calculation steps:
[( 479 - 919 ) ÷ 919] x 100 = -47.88%
Formula
Percentage change = [(479 - 919) / 919] x 100
Subtract the new number by the original number
479 - 919 = -440
-440 ÷ 919 = -0.47878128400435255
-0.47878128400435255 x 100 = -47.88%