Answer:
return = 8.51%
Step-by-step explanation:
given data
Johnson invest = 220 shares
price = $70 per share
yahoo invest = 240 shares
price = $20 per share
Johnson increases = $80
Yahoo decreases = $18 per share
to find out
what is the return on your portfolio
solution
first we get Initial value of portfolio that is express as
Initial value of portfolio = (220 × 70) + (240 × 20)
Initial value of portfolio = $20200
and
Current value will be
Current value = (220 × 80) + (240 × 18)
Current value =$21920
and
return = (Current value - beginning value) ÷ beginning value .............1
put here value
return =

return = 8.51%