-42.8% is the change from 736 to 421
Calculation steps:
[( 421 - 736 ) ÷ 736] x 100 = -42.8%
Formula
Percentage change = [(421 - 736) / 736] x 100
Subtract the new number by the original number
421 - 736 = -315
-315 ÷ 736 = -0.4279891304347826
-0.4279891304347826 x 100 = -42.8%