The total change in value of her shares $160.
Compound interest is interest calculated on the initial principal, which also includes all of the accumulated interest from previous periods on a deposit or loan. Interest can be compounded on any given frequency schedule, from continuous to daily to annually.
If Salma owns 40 shares, and each share went up by $4
Then,
The total change in value of her shares = 40x4
= $160
Hence,The total change in value of her shares $160.
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