-19.09% is the change from 482 to 390
Calculation steps:
[( 390 - 482 ) ÷ 482] x 100 = -19.09%
Formula
Percentage change = [(390 - 482) / 482] x 100
Subtract the new number by the original number
390 - 482 = -92
-92 ÷ 482 = -0.1908713692946058
-0.1908713692946058 x 100 = -19.09%