During 1988, eighty percent (80%) of A's working days were required to be worked inside West Virginia.
Seventy percent (70%) of the partnership income is properly allocated to West Virginia as seventy percent (70%) of the partnership business was transacted in West Virginia.
Net rentals from medical office building located in Wheeling...$10,000 A's share as 50% beneficiary...$5,000.00
The net amount of A's items of income and gain entering into his federal adjusted gross income derived from or connected with West Virginia sources is determined as follows:
Total SA's West Virginia adjusted gross income)... $37,500.00
Days actually worked during year in West Virginia...70
Total days worked during the year...280
Since the number of days worked within West Virginia amounts to twenty-five percent (25%) of X's total working days, X multiplies his total salary by twenty-five percent (25%) to arrive at the amount of his West Virginia income. His West Virginia income is five thousand dollars ($5,000) (25% X $20,000 = $5,000).
W. Va. Code R. § 110-21-32