-58.9% is the change from 949 to 390
Calculation steps:
[( 390 - 949 ) ÷ 949] x 100 = -58.9%
Formula
Percentage change = [(390 - 949) / 949] x 100
Subtract the new number by the original number
390 - 949 = -559
-559 ÷ 949 = -0.589041095890411
-0.589041095890411 x 100 = -58.9%