Around 600,000 people visited the market in 2018.
The figures have been released by Exeter Catherdral, which has run the market since 2017.
It takes into account accommodation, shopping, transport and eating cost of those who visit the market during the month it's open, in the run up to Christmas.
East Devon food bank readies fundraising push
The Ottery Larder supports 500 people per week
New Dartmoor boss says job is a dream come true
'I am delighted to be here, and I see huge opportunities'
Devon rapist jailed for 10 years
Philip Street told victim it 'was our secret'
75 homes pledged near Buckfastleigh
45 percent to be affordable
Residents return home after WW2 bomb detonated
Emergency services thank Plymouth residents
WW2 bomb found in Plymouth to be detonated today
Thousands evacuated from Southway
