-56.37% is the change from 965 to 421
Calculation steps:
[( 421 - 965 ) ÷ 965] x 100 = -56.37%
Formula
Percentage change = [(421 - 965) / 965] x 100
Subtract the new number by the original number
421 - 965 = -544
-544 ÷ 965 = -0.5637305699481865
-0.5637305699481865 x 100 = -56.37%