Weekly Report: what happened at AMPU last week (0706-0710)?

Last week AMPU had an overall loss of -17.56%, the stock price moved from 4.50 to 3.71, last week's high was 5.30, the low was 3.49, and the cumulative volume was 2.53M.

● AMPU reached a 52-week down last week on 10 July, quoting 3.71.