Asimple index of three stocks have opening values on day 1 and day 8 as
shown in the table below.
day 1
no. shares price per
share
8000 $4.25
5000 $2.90
2000 $6.
40
day 8
no. shares price per
share
8000 $3.90
5000 $2.50
2 000
$6.10
stock abc
stock xyz
stock qrs
what is the rate of change of this simple index over one week? round your
answer to the nearest tenth.