As any top price comparison site, your site can have the option to save price history and allows users to get notifications for price drops.
First of all, enable this option in general settings of the plugin.
The price history stores after each price update of the offer on your site. This means, that history will be available only after several price updates on your site. Price alerts can be available in any time.
After you enabled the price history, you can show the price history block with all statistic with the special shortcode. For example:
[content-egg module=Amazon template=price_tracker_alert]
Please, note, some themes with extended support of the plugin can have special Post templates with the enabled Price history. Check a chapter about compatible themes.
You can have sidebar widget with list of latest products with most big discount during special period. You can set period which will be used to compare price of product. For this, go to General settings - Price drops period. After changing this setting, wait your next price update, only after price update new setting will be applied.
You can also add most discounted products as content module on page, for example, as part of Homepage. Use shortcode
Shortcode has several parameters, the same as widgets
[content-egg-price-movers template=wdgt_price_movers_list limit=20 drop_type=absolute last_update=7]