Returns the difference of two numbers. Equivalent to the `-` operator.
value1- The minuend, or number to be subtracted from.
value2- The subtrahend, or number to subtract from
SUM: Returns the sum of a series of numbers and/or cells.
QUOTIENT: Returns one number divided by another, without the remainder.
PRODUCT: Returns the result of multiplying a series of numbers together.
MULTIPLY: Returns the product of two numbers. Equivalent to the `*` operator.
DIVIDE: Returns one number divided by another. Equivalent to the `/` operator.
ADD: Returns the sum of two numbers. Equivalent to the `+` operator.