-40.34% is the change from 704 to 420
Calculation steps:
[( 420 - 704 ) ÷ 704] x 100 = -40.34%
Formula
Percentage change = [(420 - 704) / 704] x 100
Subtract the new number by the original number
420 - 704 = -284
-284 ÷ 704 = -0.4034090909090909
-0.4034090909090909 x 100 = -40.34%