It depends from how many you use in the first place to get to 9100 AND STAY there
is varies from 18to19 with not much bleeding + always win your matches to 25+ if you really unlucky and your team is't meating the criteria to be at Legends
In shorts NO you don't recover entirelly BUT you get 30DM form clearing lists at Legends sometimes so
1500DM from top 500 + 450DM from lets say 15 list clearing (depends on luck)
you get 1950 - 2080DM from 2 packs of crown
loss 130DM which isn't a big one and the wheel + the daily 20DM covers that.
Hope i hepled with my wall of DM economics