How do I calculate a spread, or subtract one series from another?

There are two main possibilities to subtract one series from another:

1. The Arithmetic analysis:

You can use the Arithmetic analysis, and choose “Subtract” from the first operation field.

NOTE: The series on the left side will be used for the calculation and won’t be available in the later parts of analysis tree.

2. Formulas

You can simply use the “-” operand in the formula language.