-51.44% is the change from 939 to 456
Calculation steps:
[( 456 - 939 ) ÷ 939] x 100 = -51.44%
Formula
Percentage change = [(456 - 939) / 939] x 100
Subtract the new number by the original number
456 - 939 = -483
-483 ÷ 939 = -0.5143769968051118
-0.5143769968051118 x 100 = -51.44%