-29.05% is the change from 420 to 298
Calculation steps:
[( 298 - 420 ) ÷ 420] x 100 = -29.05%
Formula
Percentage change = [(298 - 420) / 420] x 100
Subtract the new number by the original number
298 - 420 = -122
-122 ÷ 420 = -0.2904761904761905
-0.2904761904761905 x 100 = -29.05%