I'm trying to work out whether it's feasible to send our children to our local GDST school for some or all of their education. When running the calculations, the assumed rate of fees inflation makes an enormous difference: even half a percent makes a difference of tens of thousands of pounds.
I know that fees have been rising much faster than inflation in recent decades, but don't know whether that's likely to continue or to moderate. I guess that that depends on what factors have been driving the increases (teachers' salaries going up in general? rising incomes leading to rising demand for places?), and whether those factors are still in place, but don't really know how fees are set.
Can anyone offer an informed opinion about a reasonable rate to project for the next decade or so?