-19.88% is the change from 483 to 387
Calculation steps:
[( 387 - 483 ) ÷ 483] x 100 = -19.88%
Formula
Percentage change = [(387 - 483) / 483] x 100
Subtract the new number by the original number
387 - 483 = -96
-96 ÷ 483 = -0.19875776397515527
-0.19875776397515527 x 100 = -19.88%