-93.68% is the change from 427 to 27
Calculation steps:
[( 27 - 427 ) ÷ 427] x 100 = -93.68%
Formula
Percentage change = [(27 - 427) / 427] x 100
Subtract the new number by the original number
27 - 427 = -400
-400 ÷ 427 = -0.936768149882904
-0.936768149882904 x 100 = -93.68%