-46.84% is the change from 790 to 420
Calculation steps:
[( 420 - 790 ) ÷ 790] x 100 = -46.84%
Formula
Percentage change = [(420 - 790) / 790] x 100
Subtract the new number by the original number
420 - 790 = -370
-370 ÷ 790 = -0.46835443037974683
-0.46835443037974683 x 100 = -46.84%