-23.33% is the change from 390 to 299
Calculation steps:
[( 299 - 390 ) ÷ 390] x 100 = -23.33%
Formula
Percentage change = [(299 - 390) / 390] x 100
Subtract the new number by the original number
299 - 390 = -91
-91 ÷ 390 = -0.23333333333333334
-0.23333333333333334 x 100 = -23.33%