Suppose you bought 2 shares of VOO and 2 shares BND on 7/1/2018. VOO and BND had a closing price of $258.40 and $78.61 on 7/1/2018, respectively. The closing prices of VOO and BND on 8/1/2018 were $266.34 and $79.10, respectively. The return of your portfolio for July 2018 is ________. Ignore transaction costs.

1.44%

1.54%

2.50%

2.15%