-52.14% is the change from 420 to 201
Calculation steps:
[( 201 - 420 ) ÷ 420] x 100 = -52.14%
Formula
Percentage change = [(201 - 420) / 420] x 100
Subtract the new number by the original number
201 - 420 = -219
-219 ÷ 420 = -0.5214285714285715
-0.5214285714285715 x 100 = -52.14%