-77.62% is the change from 420 to 94
Calculation steps:
[( 94 - 420 ) ÷ 420] x 100 = -77.62%
Formula
Percentage change = [(94 - 420) / 420] x 100
Subtract the new number by the original number
94 - 420 = -326
-326 ÷ 420 = -0.7761904761904762
-0.7761904761904762 x 100 = -77.62%