Have been quoted a price (with tax) for a Mitsubishi Colt with many extras from a german dealer - 10,500 What is the tax free price at 19% off ?

is the 10,500 the 100% price or the 119% price....i.e. is it the taxed value and you want to remove the tax which is 19% on top of the initial price? The answer will be different. It could be either - 8,505 or 8,823 depending on the answer above. re-reading your note i think it is likely to be the 8,823 value. S_R

Cost price = 100 Tax - 19% Total = 119 Now you come along with your "mergerstewer" form and take 19% off 119 - 19% = (119-22.61) = 93.39. Oops. That is why it works out at 15% instead of 19.

I think you're taking the wrong approach - you are taking 81% of the total., but infact the toal is 119% of the original value as it has tax included, what you need to do is remove the 19% from the 119% to return to 100%, therefore divide by 119 and multiply by 100, which will then give you the value of thecar prior to 19% tax being added to the cost. Leaving 8,823 as the original cost of the car. S_R