Answer: He earned 0.831% interest in total.
Step-by-step explanation:
Given: Shawn earned $2.77 per day for three days as interest on his $1,000.00 investment.
Interest per day = $2.77
Interest in 3 days = 3 x ($2.77)
= $8.31
Invested amount= $1000
Required percentage of earnings = [tex]\dfrac{\text{Interest earned in 3 days}}{\text{Initial investment}}\times100[/tex]
[tex]=\dfrac{8.31}{1000}\times100=0.831\%[/tex]
Hence, he earned 0.831% interest in total.
