-98.36% is the change from 427 to 7
Calculation steps:
[( 7 - 427 ) ÷ 427] x 100 = -98.36%
Formula
Percentage change = [(7 - 427) / 427] x 100
Subtract the new number by the original number
7 - 427 = -420
-420 ÷ 427 = -0.9836065573770492
-0.9836065573770492 x 100 = -98.36%