Other Software uses Clergy Wksht1 to calculate Percentage of tax free income. Then it uses that percentage calculate deduction allowed on worksheet2. 

In this case, I got line 6 in wksh1 = 19%

Then other Expenses on sch C would be allowed only 81% to deduct (19%  is not allowed to deduct)

To calculate ln7 on wksht2 you must use line6 from wksht1 x expense.

ln7-wkst2 = expense-(expense * ln6-wksht1)

But Proseries uses all 100% to use as deductible expenses. And I try to check wksh1 and 2 from , Proseries, but I cannot found that wksht.