-92.9% is the change from 479 to 34
Calculation steps:
[( 34 - 479 ) ÷ 479] x 100 = -92.9%
Formula
Percentage change = [(34 - 479) / 479] x 100
Subtract the new number by the original number
34 - 479 = -445
-445 ÷ 479 = -0.9290187891440501
-0.9290187891440501 x 100 = -92.9%