-53.14% is the change from 939 to 440
Calculation steps:
[( 440 - 939 ) ÷ 939] x 100 = -53.14%
Formula
Percentage change = [(440 - 939) / 939] x 100
Subtract the new number by the original number
440 - 939 = -499
-499 ÷ 939 = -0.531416400425985
-0.531416400425985 x 100 = -53.14%