So, After it is sorted by date,
Column F could have (for QTY):
=IF($A2=$A1,"",SUMIF($A:$A,$A2,D:D))

Column G could have (for Amount):
=IF($A2=$A1,"",SUMIF($A:$A,$A2,E:E))

The way I wrote the formula, you could just copy the first formula and fill it to column G, then down.

Hope this helps!