attempted this, but unsure if my OFFSET is correct:
api.Data.Calculate("E#B:O#Forms:A#100001:UD5#ADJ = 0.5 *(E#A:O#Import:F#EndBal_Load:A#100001:UD5#ADJ",False)
api.Data.Calculate("E#C:O#Forms:A#100001:UD5#ADJ = 0.4 *(E#A:O#Import:F#EndBal_Load:A#100001:UD5#ADJ",False)
api.Data.Calculate("E#C:O#Forms:A#100001:UD5#ADJ = -0.9 *(E#A:O#Import:F#EndBal_Load:A#100001:UD5#ADJ",False)
'OFFSET
api.Data.Calculate("E#A:O#Import:F#EndBal_Load:A#100001:UD5#ADJ = E#A:O#Import:F#EndBal_Load:A#100001:UD5#ADJ + (-1 *(E#A:O#Import:F#EndBal_Load:A#100001:UD5#ADJ)",False)