-41.96% is the change from 939 to 545
Calculation steps:
[( 545 - 939 ) ÷ 939] x 100 = -41.96%
Formula
Percentage change = [(545 - 939) / 939] x 100
Subtract the new number by the original number
545 - 939 = -394
-394 ÷ 939 = -0.41959531416400425
-0.41959531416400425 x 100 = -41.96%