Assistance with conditional sum formulas

Good afternoon. I have been trying to create a formula that would conduct the following on one sheet where data is residing on another -

1. Where (Extract!T2:210000, "=Declined"
2. Sum $'s (Extract!H2:H10000,">0" and Sum $'s (Extract!K2:k10000,">0"

I know my end results should end up being:
H (Declined Credits) value = $19,344.77
K (Declined Refunds)value = $128,035.40
Total Declines (H + K) = $147,380.17

Thank you ConneXionLost! I was not able to properly construct the SumIf functions and you were able to show me the correct way. I also took your formulas one additional step and combined into a single one for my application:

=SUM(SUMIF(Extract!T:T,"Declined",Extract!H:H)+(SUMIF(Extract!T:T,"Declined",Extract!K:K)))