Please confirm if parameter you are using is defined as single value or multi-value parameter. Multi-value parameters are not usable in calculated fields and single value parameter must have a default value assigned to be used in calculated fields.
A sample eflse expression using parameter is: ifelse(${Segment}='Total,{MoM Sales},{MoM %})
May be you can explain more about what is your use case scenario and there is different way to achieve that.
Hi, @Shubham_Gupta. Did @DeepakS’s solution work for you? I am marking his reply as, “Solution,” but let us know if this is not resolved. Thanks for posting your questions on the QuickSight Community Q&A Forum!