Over a period of one​ week, a stock index did the​ following: On Monday the index went up by 3.3​%,

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Over a period of one​ week, a stock index did the​ following: On Monday the index went up by

3.3​%,

on Tuesday it went up by

10.5​%,

on Wednesday it went down by

3.4​%,

on Thursday it went up by

0.6​%,

and on Friday it went down by

6.2​%.

What was the percentage​ increase/decrease of the index over the​ week?

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