Sorry, I couldn't find pricing data for that day. The closing price for Apple (AAPL) on August 28, 1998 was $0.26. It was down 7.9% for the day. The latest price is $255.46.
DATE
OPEN
HIGH
LOW
CLOSE
VOLUME
August 28 1998
$0.28
$0.29
$0.26
$0.26
932,254,400
Daily pricing data for Apple dates back to 12/12/1980, and may be incomplete.