-93.7% is the change from 476 to 30
Calculation steps:
[( 30 - 476 ) ÷ 476] x 100 = -93.7%
Formula
Percentage change = [(30 - 476) / 476] x 100
Subtract the new number by the original number
30 - 476 = -446
-446 ÷ 476 = -0.9369747899159664
-0.9369747899159664 x 100 = -93.7%