-69.05% is the change from 420 to 130
Calculation steps:
[( 130 - 420 ) ÷ 420] x 100 = -69.05%
Formula
Percentage change = [(130 - 420) / 420] x 100
Subtract the new number by the original number
130 - 420 = -290
-290 ÷ 420 = -0.6904761904761905
-0.6904761904761905 x 100 = -69.05%