Example: 10 boxes each with 40x50x80 cms dimensions and 20 kgs weight.
From İstanbul Airport to Dubai Airport
Sample Airfreight Rate  : USD 3.00/KGS

First we have to calculate the chargable weight to be able to find the total airfreight rate and take the higher one as the chargable weight.
Real Gross Weight  : 20 x 10 = 200 kilograms
Volume Weight    : (10 x (40x50x80)) / 6000
= 1600000 / 6000
= 267 kilograms

Chargable weight    : 267 kgs
Sample Airfreight rate  : USD 3 / Kgs
Total Rate    : (3×267) + Delivery Order
= 801 + 80
= USD 881.00