LTSpice - simulation doesn't match predicted (Chebyshev filter)
The designed response curve has linear scale. Your updated simulation result still has decibels. They are difficult to compare. You should goto your simulation settings and remove the decibels from what is calculated. This is what the early commentators have actually suggested. It does not help if you try to scale the decibels. They are still decibels and need a little math to be converted to voltage gain. 

The result coarsely seems to be the wanted high pass response, but shown in desibels.