How can I manually from the known values of Return or Supply Air Volume, Return Air Supply Air readings and Readings
calculate "AHU Performance Calculated "values (Total kW, kW Sensible, Latent kW, SHR, Condensate l / hr)

As a here fridgetech.com/calculators/ahucalc.html

Beginner in the world of air conditioners. Thank you all for your help.