-6.02% is the change from 415 to 390
Calculation steps:
[( 390 - 415 ) ÷ 415] x 100 = -6.02%
Formula
Percentage change = [(390 - 415) / 415] x 100
Subtract the new number by the original number
390 - 415 = -25
-25 ÷ 415 = -0.060240963855421686
-0.060240963855421686 x 100 = -6.02%