IN 27TH EDITION OF ACCOUNTING (WARREN/REEVE/DUCHAC) IN CHAPTER 4, COMPREHENSIVE PROBLEM #1 FOR MAY 2019 HOW DO I COME UP WITH "INVESTMENT DURING THE MONTH?" ( KELLY CONSULTING STATEMENT OF OWNERS EQUITY). IN APRIL THE INVESTMENT WAS HER INITIAL INVESTMENT WAS $30,000 AND SHE NOW HAS CAPITAL OF $42,300. FOR MAY THAT $42,300 IS NOW CAPITAL OF $42,300 FOR MAY 1 2019. I BELIEVE NET INCOME FOR MAY IS $29,515 AND FOR SURE HER WITHDRAWAL IS $10,500. MY QUESTION IS STILL HOW DO I ARRIVE AT "INVETMENT FOR THE MONTH OF MAY???