| 1 | A | B | C | D | E |
| --- | --- | --- | --- | --- | --- |
| 2 | Micro Instrumentation and Telemetry Systems - MITS calculators |  |  |  |  |
| 3 | Model | Description | Introduced | Kit Price | Assembled |
| 4 | 816 | Desktop, 8-digit display, 16-digit calculations 4-function | Nov. 1971 | $179 | $275 |
| 5 | 1440 | Desktop, 14-digit display, square root, memory | Jun. 1972 | $199.95 | $249.95 |
| 6 | 816B | Desktop, 8-digit display, 16-digit calculations, 4-function | Jun. 1972 | $149.95 | $189.95 |
| 7 | 7400 | Desktop, 14-digit scientific. Trig functions, 3- (7400A), 5- (7400B), or 7-level stack (7400C) | Dec. 1972 | $339.95 | $419.95 |
| 8 | 1206 | Handheld, 6 digit display, 12-digit calculation, 4-function, | Jan. 1973 | $49.95 | $59.95 |
| 9 | 1209 | Handheld, 9 digit display, 12-digit calculation, 4-function, | Jan. 1973 | $69.95 | $79.95 |
| 10 | 1212 | Handheld, 12 digit, 4-function, | Jan. 1973 | $89.95 | $99.95 |
| 11 | 1230 | Handheld, 12 digit display, 4-function, | Jan. 1973 | $89.95 | $99.95 |
| 12 | 1240 | Handheld, 12 digit display, 4-function, memory | Jan. 1973 | $119.95 | $149.95 |
| 13 | 7440 | Desktop, 14-digit, scientific | Mar. 1973 | $199.95 | $299.95 |
| 14 | Programmer | 256 step programmer for 7440, 816, 1440, 908DM. | Mar. 1973 | $199.95 | $299.95 |
| 15 | 150 | Handheld, 8-digit, 4-function, square root, memory | Aug. 1973 | $119.95 | $149.95 |
| 16 | 941M | Handheld, 8-digit, 4-function, percent, metric conversions | Jan. 1974 | $129.95 | $149.95 |
| 17 | 908M | Handheld, 8-digit, 4-function, square root, memory | Jan. 1974 | $99.95 | $129.95 |
| 18 | 605M | Handheld, 6-digit, 4-function, percent | Jan. 1974 | $49.95 | $59.95 |
| 19 | 905M | Handheld, 8-digit, 4-function, percent | Jan. 1974 | $59.95 | $69.95 |
| 20 | 908DM | Desktop, 8-digit, 4-function, percent | Feb. 1974 | $129.95 | $149.95 |

Question: How much does the six-digit model cost compared to the twelve-digit model?
Answer: The six-digit model was $59.95 and the twelve-digit model was $99.95, $40 more expensive.