> For the complete documentation index, see [llms.txt](https://docs.icpex.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.icpex.org/icrc-2+-protocol/method-calling-guide.md).
# Method Calling Guide
## 1.Burn Fee Calculation
Users can call the "icrc1\_metadata" method to return the Burn Fee.
### (1)Burn Fee in Fixed Amount Mode
After calling the "icrc1\_metadata" method, check the return result of the "icrc1:burn\_fee" field.
Example:
When this method of canister pbuvh-yiaaa-aaaam-acfpq-cai is called, the return value of the "icrc1:burn\_fee" field is 1\_000\_000\_000\_000\_000. Considering that its decimals is 18, the Burn Fee is 0.001. The details of the return result are shown in the figure below:
Or you can call the "icrc\_plus\_fee\_info" method to check the return result of the "burn\_fee" field, as shown below:
### (2)Burn Fee in Percentage Mode
After calling the "icrc1\_metadata" method, check the return result of the "icrc1:burn\_fee\_rate" field and divide by 10,000 to get the percentage rate.
Example:
When calling the method of canister o64gq-3qaaa-aaaam-acfla-cai, the method returns a burn\_fee\_rate value of 100, as shown below:
Therefore, the Burn Fee Rate is 100/10,000 = 1%.
## 2.Transfer Fee Calculation
Users can call the "icrc1\_metadata" method to return the Transfer Fee.
### (1)Transfer Fee in Fixed Amount Mode
After calling the "icrc1\_metadata" method, check the return result of the "icrc1:fee" field.
Example:
When the method of canister zuwx2-fyaaa-aaaam-ack3q-cai is called, the return value of the "icrc1:fee" field is 10\_000\_000. Considering that its decimals is 8, the Transfer Fee is 0.1. The details of the return result are shown in the figure below:
Or you can call the "icrc\_plus\_fee\_info" method to check the return result of the "transfer\_fee" field, as shown below:
### (2)Transfer Fee in Percentage Mode
After calling the "icrc1\_metadata" method, check the return result of the "icrc1:transfer\_fee\_rate" field and divide by 10,000 to get the percentage rate.
Example:
When calling the method of canister o64gq-3qaaa-aaaam-acfla-cai, the method returns a "transfer\_fee\_rate" value of 100, as shown below:
Therefore, the Transfer Fee Rate is 100/10,000 = 1%.
## 3.Number of Token Holders
Users can call the "icrc\_plus\_holders\_count" method to return the result.
Example:
When calling the method of canister o64gq-3qaaa-aaaam-acfla-cai, the returned value is the number of token holders, as shown below:
## 4.Distribution of Holdings
Users can call the "icrc\_plus\_holders\_balance" method to return the result.
Parameter 1 is the starting index.
Parameter 2 is the number of records to query.
Example:
When calling the method of canister o64gq-3qaaa-aaaam-acfla-cai with Parameter 1 as 0 and Parameter 2 as 2 (i.e., querying 2 records starting from index 0), the method returns the result as shown below:
## 5.Amount of Cycles of Canister
Users can call the "icrc\_plus\_cycles" method to return the result.
Example:
When calling this method of canister o64gq-3qaaa-aaaam-acfla-cai, the method returns a value of 4\_328\_187\_225\_519, which is the number of cycles remaining for the canister. As shown below:
## 6.Relinquish Ownership of the Token Canister
Token creators can call the "icrc\_plus\_set\_minting\_account" method through a platform that has integrated the ICRC-2+ protocol to transfer the ownership of the token canister to the black hole address(aaaaa\_aa).
The method is shown below.
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