-10.53% is the change from 399 to 357
Calculation steps:
[( 357 - 399 ) ÷ 399] x 100 = -10.53%
Formula
Percentage change = [(357 - 399) / 399] x 100
Subtract the new number by the original number
357 - 399 = -42
-42 ÷ 399 = -0.10526315789473684
-0.10526315789473684 x 100 = -10.53%