I have the following formula which works OK:

=IF(ISBLANK(AJ2),"",IF(H2<40,'Jobs (2)'!F2*0.682,IF(H2130,'Jobs
(2)'!F2*0.781,"0")))

But I need to add another IF clause to account for values in H2 which lie
between 40 and 130. How do I do that - I just can't work it out?