-40.28% is the change from 705 to 421
Calculation steps:
[( 421 - 705 ) ÷ 705] x 100 = -40.28%
Formula
Percentage change = [(421 - 705) / 705] x 100
Subtract the new number by the original number
421 - 705 = -284
-284 ÷ 705 = -0.40283687943262414
-0.40283687943262414 x 100 = -40.28%