I need some math (and French lesson :unsure:).
The total to pay is 25,50 € (about 28$).
25,50 € = 17,50 + 8. But how we can calculate these number?
What's 2,92 €?
PS The description (potentiometers, diodes, inductors) it's because the package it's been open up and check up? Maybe to control...