-30.46% is the change from 604 to 420
Calculation steps:
[( 420 - 604 ) ÷ 604] x 100 = -30.46%
Formula
Percentage change = [(420 - 604) / 604] x 100
Subtract the new number by the original number
420 - 604 = -184
-184 ÷ 604 = -0.304635761589404
-0.304635761589404 x 100 = -30.46%