the answer is 0.365 I just need the work for how to get to that answer for change in NAV

Suppose today a mutual fund contains 2,000 shares of JPMorgan Chase, currently trading at $64.75,1,000 shares of Walmart, currently trading at $63.10, and 2,500 shares of Pfizer, currently trading at $31.50. The mutual fund has no liabilities and 10,000 shares outstanding held by investors. b. Calculate the change in the NAV of the fund if tomorrow JPMorgan's shares increase to $66, Walmart's shares increase to $68, and Pfizer's shares decrease to $30