Hello community, Following is the error i am getting for the Bulk apex triggers

Module is Apex Trigger(Bulk apex triggers)

Challenge not yet complete in pragati.pendem@gmail.com

We tried to insert Opportunity records as part of the challenge check, but the insert failed. Error: thException: OPP_INSERT | System.DmlException: Insert failed. First exception on row 0; first error: REQUIRED_FIELD_MISSING, Required fields are missing: [Discount_Percent__c]: [Discount_Percent__c]

Please help me out, Thank you in advance.