After applying the discount, the new total is: 41.84
30 percent off of 77 plus 7 percent tax = 57.67
In today's notation it is: (IV)CDXCIX = 4000+400+90+9 = 4499 But the Romans probably wrote the equivalent of 4499 simply as I(IV)D = -1 +4000 +500 = 4499
185.07
5.25
46.5
7
93.00
116.25
7 - (7 times 0.2)
5.60
1
4000