A Silver Republican Denarius Coin, c.130 - 120BC, found Abbots Bromley

1 amphora of wine 300 sesterti
1 general slave 500-1,500 denarii
1 pretty female slave 2,000-6,000 denarii

This set maximum prices for which goods could be sold.

1 pound pork - 12 denarii
1 pound beef - 8 denarii
1 modius salt - 100 denarii
1 sextarius olive oil - 40 denarii
1 modius wheat - 100 denarii
1 modius barley - 60 denarii
1 sextarius Falernian wine - 30 denarii
1 pair of fashionable shoes - 150 denarii
1 pair of women's boots - 60 denarii
wool from Tarentum - 175 denarii per pound
white silk - 12,000 denarii per pound

1 modius = c.8 litres (dry measure)
1 sextarius = c.1/2 litre (dry measure) or c.1 litre (liquid measure)

Emperor Augustus 27BC-AD14
Private - 225 denarii per year
Centurion - 3,750 denarii per year

Emperor Caracalla AD211-217
Private - 750 denarii per year
Centurion - 12,500 denarii per year