How to Calculate discount for opportunity in Salesforce based on percentage field?

Table of Contents

Introduction to scenario

→ Apex Trigger 5

Prerequisite

• Create a Custom field on Opportunity “Discount” and the data type of this field should be percent.
• Create a Custom field on Opportunity “Discounted Price” with Currency Data Type

Requirement

Develop an Apex Trigger on Opportunity so that when any opportunity is created and if the Discount & Amount field is not blank then calculate the discount and store it in the Discount Price field.

To Calculate the discount use the below formula and store it in a variable
Decimal discount = ( Discount * Amount ) / 100

To Calculate the Discounted Price use the below calculation and store it in a variable
Decimal discountedAmount = Amount – discount;

Hand on

Dispatcher Class

Handler Class

Outcome

Resources

• https://www.pantherschools.com/create-an-task-under-opportunity-if-accountid-is-null/
• https://www.pantherschools.com/how-to-update-account-billing-address-in-shipping-address-only-if-shipping-address-is-blank/
• https://www.pantherschools.com/how-to-create-a-task-under-account/
• https://trailhead.salesforce.com/content/learn/modules/apex_triggers