<?xml version="1.0" encoding="UTF-8"?>
<!-- Generated by http://luca.auditchain.finance -->
<!--2023-07-13 13.45.59-->
<link:linkbase xmlns="http://www.xbrl.org/2003/linkbase" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.xbrlsite.com/helloWorld/role/HelloWorld" xlink:href="helloWorld.xsd#HelloWorld" xlink:type="simple" />
  <link:calculationLink xlink:role="http://www.xbrlsite.com/helloWorld/role/HelloWorld" xlink:type="extended">
    <link:loc xlink:href="helloWorld.xsd#helloWorld_PropertyPlantAndEquipmentNet" xlink:label="helloWorld_PropertyPlantAndEquipmentNet" xlink:title="helloWorld_PropertyPlantAndEquipmentNet" xlink:type="locator" />
    <link:loc xlink:href="helloWorld.xsd#helloWorld_Land" xlink:label="helloWorld_Land" xlink:title="helloWorld_Land" xlink:type="locator" />
    <link:loc xlink:href="helloWorld.xsd#helloWorld_BuildingsNet" xlink:label="helloWorld_BuildingsNet" xlink:title="helloWorld_BuildingsNet" xlink:type="locator" />
    <link:loc xlink:href="helloWorld.xsd#helloWorld_FurnitureAndFixturesNet" xlink:label="helloWorld_FurnitureAndFixturesNet" xlink:title="helloWorld_FurnitureAndFixturesNet" xlink:type="locator" />
    <link:loc xlink:href="helloWorld.xsd#helloWorld_ComputerEquipmentNet" xlink:label="helloWorld_ComputerEquipmentNet" xlink:title="helloWorld_ComputerEquipmentNet" xlink:type="locator" />
    <link:loc xlink:href="helloWorld.xsd#helloWorld_OtherPropertyPlantAndEquipmentNet" xlink:label="helloWorld_OtherPropertyPlantAndEquipmentNet" xlink:title="helloWorld_OtherPropertyPlantAndEquipmentNet" xlink:type="locator" />
    <link:calculationArc order="1.0" priority="1" use="optional" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="helloWorld_PropertyPlantAndEquipmentNet" xlink:to="helloWorld_Land" xlink:title="calculation: helloWorld_PropertyPlantAndEquipmentNet to helloWorld_Land" xlink:type="arc" />
    <link:calculationArc order="2.0" priority="1" use="optional" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="helloWorld_PropertyPlantAndEquipmentNet" xlink:to="helloWorld_BuildingsNet" xlink:title="calculation: helloWorld_PropertyPlantAndEquipmentNet to helloWorld_BuildingsNet" xlink:type="arc" />
    <link:calculationArc order="3.0" priority="1" use="optional" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="helloWorld_PropertyPlantAndEquipmentNet" xlink:to="helloWorld_FurnitureAndFixturesNet" xlink:title="calculation: helloWorld_PropertyPlantAndEquipmentNet to helloWorld_FurnitureAndFixturesNet" xlink:type="arc" />
    <link:calculationArc order="4.0" priority="1" use="optional" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="helloWorld_PropertyPlantAndEquipmentNet" xlink:to="helloWorld_ComputerEquipmentNet" xlink:title="calculation: helloWorld_PropertyPlantAndEquipmentNet to helloWorld_ComputerEquipmentNet" xlink:type="arc" />
    <link:calculationArc order="5.0" priority="1" use="optional" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="helloWorld_PropertyPlantAndEquipmentNet" xlink:to="helloWorld_OtherPropertyPlantAndEquipmentNet" xlink:title="calculation: helloWorld_PropertyPlantAndEquipmentNet to helloWorld_OtherPropertyPlantAndEquipmentNet" xlink:type="arc" />
  </link:calculationLink>
</link:linkbase>