-93.63% is the change from 424 to 27
Calculation steps:
[( 27 - 424 ) ÷ 424] x 100 = -93.63%
Formula
Percentage change = [(27 - 424) / 424] x 100
Subtract the new number by the original number
27 - 424 = -397
-397 ÷ 424 = -0.9363207547169812
-0.9363207547169812 x 100 = -93.63%