Last Scanned:Aug 15, 2026, 10:17 PM
ActiveTexas Instruments Ti-89 Titanium Graphing Calculator (Packaging May Differ) (Renewed)
23% OFF$79.99$219.99
Recorded Lowest: $79.99Recorded Highest: $105.9890-Day Average: $105.20
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Price Tracker
Get the full price history and find the best time to buy.
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The lowest price we've tracked for Texas Instruments Ti-89 Titanium Graphing Calculator (Packaging May Differ) (Renewed) in the last 90 days is $79.99 (Aug 15, 2026).
Today's price of $79.99 matches that 90-day low, the best price we've seen.
We've recorded 4 price drops across 13 price checks since May 25, 2026; the average price over that period is $105.20.
View recorded price changes (11)
| Date | Source | Price |
|---|---|---|
| Aug 15, 2026 | Amazon | $79.99 |
| Jul 7, 2026 | Amazon | $104.99 |
| Jul 2, 2026 | Amazon | $104.33 |
| Jun 30, 2026 | Amazon | $102.71 |
| Jun 27, 2026 | Amazon | $105.98 |
| Jun 23, 2026 | Amazon | $105.90 |
| Jun 17, 2026 | Amazon | $105.94 |
| Jun 12, 2026 | Amazon | $105.92 |
| Jun 10, 2026 | Amazon |
