Answer and Explanation:
The computation is shown below;
Percentage returns is 
= (End value - Beginning value) ÷ Beginning value 
 = ($77.59 - $74.82) ÷ $74.82 
 = 3.70%
 Now 
APR is 
= 3.70 × 2
 = 7.40%
As the given months is six but we have to compute for 12 months that why we multiplied it by 2 
 And, 
EAR = (1 + APR ÷ m)^m - 1 
where 
m = compounding periods 
 So, 
= (1 + 0.074 ÷ 2)^2 - 1 
 =7.54%