-58.15% is the change from 939 to 393
Calculation steps:
[( 393 - 939 ) ÷ 939] x 100 = -58.15%
Formula
Percentage change = [(393 - 939) / 939] x 100
Subtract the new number by the original number
393 - 939 = -546
-546 ÷ 939 = -0.5814696485623003
-0.5814696485623003 x 100 = -58.15%