-7.02% is the change from 399 to 371
Calculation steps:
[( 371 - 399 ) ÷ 399] x 100 = -7.02%
Formula
Percentage change = [(371 - 399) / 399] x 100
Subtract the new number by the original number
371 - 399 = -28
-28 ÷ 399 = -0.07017543859649122
-0.07017543859649122 x 100 = -7.02%