I've found out that our carpenters consider two parameters when asked to quote a customized table's price: the cost is composed of 2 parts. One part is proportional to the area and the other to the square of the larger length.

Then he adds 15% profit and 17% VAT, rounding up to the next integer value divisible by 50.
If the price of 1.2m by 1.8m is  ₪2000 and 1m*3.75m is  ₪5600 what is the price for 2.4m*2.6m dimensions?

Name the price, no discounts, no haggling!

Rem: ₪ stands for NIS, New Israeli Shekel (1$ about 3.5 ₪.)