I am attempting to write two formulas for google sheets:
One formula searches for if a value is present a cell range on one tab (say column 1, tab 1 - sheet = "American Birds") and is also present in a cell range on another tab (say column 1, tab 2 - sheet = "Australian Birds") and will present that value
The second formula searches for if a value is present a cell range on one tab (say column 1, tab 1 - sheet = "American Birds") and is also present in a cell range on another tab (say column 1, tab 2 - sheet = "Australian Birds"), then it will refer to the corresponding column 2 count for both, and give the SUM. (Note, the same item may appear on multiple lines of either sheet).
I am sure the first will utilize an IF or IMPORTRANGE function while the second will need to utilize the SUM or LOOKUP formula, but I am honestly not even sure where to start (am not super versed in spreadsheet formulas). Hypothetically, the second formula could also just search for the value of column 1, tab 3 (sheet = "Total Birds") and pull a total count from tab 1 and 2 if present. Or, to make that formula easier, I could just do one tab at a time, for column 2 and 3 (corresponding to tab 1 and 2 respectively) and have column 4 be a simply SUM of column 2 and 3.
I have attached a mock spreadsheet I made for reference on this ask. Any help is greatly appreciated!
