Issue setting PCU per Player

I need some help setting the PCU per Player setting to a specific value such as 50000.

I have changed these settings :

Sandbox.sbc

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<GameMode>Survival</GameMode>
    <InventorySizeMultiplier>1</InventorySizeMultiplier>
    <BlocksInventorySizeMultiplier>1</BlocksInventorySizeMultiplier>
    <AssemblerSpeedMultiplier>1</AssemblerSpeedMultiplier>
    <AssemblerEfficiencyMultiplier>1</AssemblerEfficiencyMultiplier>
    <RefinerySpeedMultiplier>1</RefinerySpeedMultiplier>
    <OnlineMode>PUBLIC</OnlineMode>
    <MaxPlayers>12</MaxPlayers>
    <MaxFloatingObjects>128</MaxFloatingObjects>
    <MaxBackupSaves>5</MaxBackupSaves>
    <MaxGridSize>0</MaxGridSize>
    <MaxBlocksPerPlayer>50000</MaxBlocksPerPlayer>
    <TotalPCU>1000000</TotalPCU>
    <PiratePCU>50000</PiratePCU>
    <MaxFactionsCount>0</MaxFactionsCount>
    <BlockLimitsEnabled>PER_PLAYER</BlockLimitsEnabled>
    <EnableRemoteBlockRemoval>true</EnableRemoteBlockRemoval>

<GameMode>Survival</GameMode>
    <InventorySizeMultiplier>1</InventorySizeMultiplier>
    <AssemblerSpeedMultiplier>1</AssemblerSpeedMultiplier>
    <AssemblerEfficiencyMultiplier>1</AssemblerEfficiencyMultiplier>
    <RefinerySpeedMultiplier>1</RefinerySpeedMultiplier>
    <OnlineMode>PUBLIC</OnlineMode>
    <MaxPlayers>12</MaxPlayers>
    <MaxFloatingObjects>128</MaxFloatingObjects>
    <MaxBackupSaves>5</MaxBackupSaves>
    <MaxGridSize>0</MaxGridSize>
    <MaxBlocksPerPlayer>50000</MaxBlocksPerPlayer>
    <EnableBlockLimits>PER_PLAYER</EnableBlockLimits>
    <EnableRemoteBlockRemoval>true</EnableRemoteBlockRemoval>

However, after I save the server is reporting that the PCU per player is 83333?

Why is this happening? I'm I over looking something? I would imagine some sort of computation is happening and coming up with this value?

Please advise.

Thanks,

Ron