because it's a money thing.. so the format MUST have the commas in the right places and a decimal with only 2 digits after it.. again the program starts with .00 and then increases accordingly..
these are only examples of the out put required...
.00 // is the default setup start OR 0.00 would be fine too
.01
1.00
100.00
1,000.00
1,100,000.00 // it will never get this high..
but to show that the commas MUST be in the correct place and that there is a decimal with only 2 digits after it.. not 3 or more after the decimal... it's not a percentage kind of thing so there is absolutely no need for more than 2 digits after the decimal.
.01 will add up to 1.00 accordingly... then continue adding.. like: 1.01 + .05 = 1.06 or 1.00 + .01 = 1.01