-40.2% is the change from 704 to 421
Calculation steps:
[( 421 - 704 ) ÷ 704] x 100 = -40.2%
Formula
Percentage change = [(421 - 704) / 704] x 100
Subtract the new number by the original number
421 - 704 = -283
-283 ÷ 704 = -0.40198863636363635
-0.40198863636363635 x 100 = -40.2%