=IF(D3="","",D3-C3)
=SUMPRODUCT(--(LEFT(LTC!$F$3:$F$192,4)=OTP!A8),--(LTC!$E$3:$E$192<=--"0:10"),--(LTC!$E$3:$E$192<>""))
=SUMPRODUCT(--(LEFT(LTC!$F$3:$F$192,4)=OTP!A8),--(LTC!$E$3:$E$192>=--"0:10"),--(LTC!$E$3:$E$192<>""))
Thank you, works like a charm. This suff is fun.