Roman soldiers were paid 900 sestertii (225 denarii) during the time of Augustus. They were also given salt, thus the word "saldare" (give salt), which is the origin of the word, salary.
200 sestertii (or 50 denarii) was a subsistence wage per year for adults.
One denarius a day was a good wage during the time of Jesus.
If the wage of common labors rose 25 fold in 300 years, the general price level rose threefold in 100 years. Using the 110 rule, the inflation rate was 110/100 = 1.1%. In other words, there was almost no inflation during the first three centuries, 1 - 301 AD.