Get CPU Utilization Average of a VM in WVD HostPool in time period

$TimePeriod = 30;
$ResourceGroupName = 'ResourceGroupName';
$HostPoolName = 'HostPoolName';

#-------------------------------

$EndTime = Get-Date;
$StartTime = $EndTime.addminutes(-$TimePeriod)

Get-AzWvdUserSession -ResourceGroupName $ResourceGroupName -HostPoolName $HostPoolName | select UserPrincipalName,ActiveDirectoryUserName,ApplicationType,Name,SessionState

$HostPool = $(Get-AzWvdSessionHost -ResourceGroupName $ResourceGroupName -HostPoolName $HostPoolName);

ForEach ($HostName in $HostPool) {
$CPUUtilizationSum = 0;
        $HostCPUUtilization = Get-AzMetric -ResourceId $HostName.ResourceId -MetricNames "Percentage CPU"  -TimeGrain 00:01:00 -DetailedOutput -StartTime $StartTime -EndTime $EndTime; $HostCPUUtilization.Data.Average.ForEach({$CPUUtilizationSum += [int]$_;}); $CPUUtilizationAverage = ($CPUUtilizationSum / $HostCPUUtilization.Data.Average.Length) write-host ('' + $HostName.Name + "`t" + $CPUUtilizationAverage);
};