I am using the InVEST Carbon Model and I am not understanding why the sum of the npv_fut.tiff pixels is giving me a different economic value as when I apply the formula suggested in the documentation myself.
I am using a 37 USD as Price of Carbon and 0 as Annual Rate and Market Discount.
I have an amount of 24,697 Mg of C sequestered between current and future scenario (30 years).
(The delta_cur_fut raster gives me back this result which is correct)
Applying the formula suggested in the documentation I should have $913,819.34 USD as economic value. But in the report as well as when I sum up all the pixel values in the npv_fut.tiff I am getting $30,460.64.
Could anybody explain why this is happening?
Thank you very much!