The total_est_gste or gsti is computed on the total_rrp_gste or gsti.
But in the budget this amount is the summ of discounts computed for each line.
Due to the rounding to 2 decimal places this produces a difference in Funds view with Total sublevels spent.
Signed-off-by: Paul Poulain <paul.poulain@biblibre.com> Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de> Signed-off-by: Chris Cormack <chrisc@catalyst.net.nz>