Problem: Find the most expensive product.
In a table, find the largest value and return the adjacent value.

Solution:=VLOOKUP(MAX(A:A);A:B;2;FALSE)

Functions:
MAX(number1;[number2];...)
Returns the largest value in a set of values. Ignores logical values and text.

VLOOKUP(lookup_value; table_array;col_index_num;[range_lookup])
Looks for a value in the leftmost column of a table, and then returns a value in the same row from a column you specifiy. By default the table must be sorted in ascending order.