-44.05% is the change from 420 to 235
Calculation steps:
[( 235 - 420 ) ÷ 420] x 100 = -44.05%
Formula
Percentage change = [(235 - 420) / 420] x 100
Subtract the new number by the original number
235 - 420 = -185
-185 ÷ 420 = -0.44047619047619047
-0.44047619047619047 x 100 = -44.05%