Background of the issue:
I'm trying to estimate the cost to translate a whole website using WPML. I evaluated the cost through the Translation Dashboard by selecting all the pages and the PTC Engine, which gave me 326827 words to translate with a cost of 980€. However, when I checked the cost on your calculation page for 327000 words to translate with PTC in 1 language, the cost is 456,40€.
Symptoms:
There is a nearly 100% difference in the cost estimation between the Translation Dashboard and the calculation page.