The team is part-funding itself, with the club making up the necessary difference. 'Necessary difference' being the amount it prefers to put in, most likely.
The last info I can find re: investment amounts was a 27% increase for 18/19, a further 21% increase for 19/20, and 24% for 20/21
The last details of a budget that isn't covid-impacted: loss narrowed from £313k to £5k in 2020, with revenue up 55%/£595k from £1.1m to £1.7m. Expenses up 20%/£284k to £1.7m. Commercial at £1.4m accounts for 83% of revenue. Wage bill up 21% to just under £1m.
Your guess is as good as mine for what the numbers are today.