Old/wrong data in email template

Old/wrong data in email template

I have a field in Accounts, <saldo>
From external this <saldo> is updated in crm.
I created a template include this field <Saldo>
I created a workflow rule:
This rule will be executed when saldo is modified to a value > 0
This rule will be repeated whenever the modification happens.
Instant actions is email notification sending template with new saldo.

All works fine but the template what is send by mail has old data from field <Saldo>
Current saldo is 500,
saldo is changed to 1500 so email must contain 1500 but send 500

How i can solve this?