sdk-for-flutter/docs/examples/tablesdb/decrement-row-column.md

import 'package:appwrite/appwrite.dart';

Client client = Client()
    .setEndpoint('https://<REGION>.cloud.appwrite.io/v1') // Your API Endpoint
    .setProject('<YOUR_PROJECT_ID>'); // Your project ID

TablesDB tablesDB = TablesDB(client);

Row result = await tablesDB.decrementRowColumn(
    databaseId: '<DATABASE_ID>',
    tableId: '<TABLE_ID>',
    rowId: '<ROW_ID>',
    column: '',
    value: 0, // optional
    min: 0, // optional
    transactionId: '<TRANSACTION_ID>', // optional
);