-57.97% is the change from 928 to 390
Calculation steps:
[( 390 - 928 ) ÷ 928] x 100 = -57.97%
Formula
Percentage change = [(390 - 928) / 928] x 100
Subtract the new number by the original number
390 - 928 = -538
-538 ÷ 928 = -0.5797413793103449
-0.5797413793103449 x 100 = -57.97%