In Low Code App Builder Mission exercise, there is step to use minus operator in calculated field expression. However the system does not allow to add minus (-) operator. Can you please suggest how to resolve it.
When choosing the field as a calculated read-only field, you will click the gear icon to configure the calculation. Select Custom from the list and choose the property you would like to subtract from the other.
As an added note, there are solution videos for each use case that you implement. You can see exactly how the curriculum developers arrived at their solution.