-93.44% is the change from 427 to 28
Calculation steps:
[( 28 - 427 ) ÷ 427] x 100 = -93.44%
Formula
Percentage change = [(28 - 427) / 427] x 100
Subtract the new number by the original number
28 - 427 = -399
-399 ÷ 427 = -0.9344262295081968
-0.9344262295081968 x 100 = -93.44%