-39.91% is the change from 699 to 420
Calculation steps:
[( 420 - 699 ) ÷ 699] x 100 = -39.91%
Formula
Percentage change = [(420 - 699) / 699] x 100
Subtract the new number by the original number
420 - 699 = -279
-279 ÷ 699 = -0.39914163090128757
-0.39914163090128757 x 100 = -39.91%