-38.45% is the change from 939 to 578
Calculation steps:
[( 578 - 939 ) ÷ 939] x 100 = -38.45%
Formula
Percentage change = [(578 - 939) / 939] x 100
Subtract the new number by the original number
578 - 939 = -361
-361 ÷ 939 = -0.3844515441959531
-0.3844515441959531 x 100 = -38.45%