Econ - Econonomic Growth - Endogenous Growth Model

Why does the formula subtract depreciation and population growth the neo-classical model adds these?

CAn anyone help with this please?

Which formula - specifically?

You are trying to calculate two different things…

In the neoclassical model you add them to calculate the output-to-capital ratio.

In the endogenous model you deduct them to work out the steady state growth rate.