-48.04% is the change from 920 to 478
Calculation steps:
[( 478 - 920 ) ÷ 920] x 100 = -48.04%
Formula
Percentage change = [(478 - 920) / 920] x 100
Subtract the new number by the original number
478 - 920 = -442
-442 ÷ 920 = -0.48043478260869565
-0.48043478260869565 x 100 = -48.04%