Mass changes in sales orders for condition type JEXP (Excise Duty)

Hi All,

As we know that who working with Indian Client. This time excise duty (Pricing Condition type - JEXP) has been increased by 12% , earlier it was 10%.

I have 7000 pending sales orders and i have to change.

I want to change in Jexp condition type by 10% to 12%, kindly provide me best solution on same

Need changes in only JEXP condition type

Regards,

Abhijeet