175% lol, more like 30%
Trade price for an A3 glow plug from Ripmax £1.44 +VAT = £1.69, retail price £2.25
Ebay fees 20p listing + 12p final price fee = 32p
Paypal fees = 30p
Total = 64p fees
£2.25 - 64p = £1.61
In other words an 8p loss for every sale
So they are either Grey Importing them, or not going via the RC importer of these glow plugs