# Prize Tier Controller App Spec Feature A new way of computing chance using a Draw Percentage Rate (DPR). The "probability space" (Total Picks) is currently proportional to the liquidity held by each Prize Pool. DPR changes this distribution mechanism to be a percentage set by a manager rather than the TVL. These changes are a part of the configured PrizeTier stored on a PrizeTierHistory or PrizeTierHistoryV2 contract. Stakeholders Depositor Manager (Finance Team) User Stories As a depositor/manager I want to be learn what the PrizeTier is & how it impacts the protocol As a depositor/manager I want to be able to view the current PrizeTier configuration for all chains As a manager I want to be able to update the PrizeTier configuration for all chains As a manager I want to be able to view outcome of a potential PrizeTier configuration for all chains (stretch) I want to view projections: monthly counts of prizes, yearly counts of prizes I want a clear view as to whether changes will cause an increase or decrease in prizes, etc. As a manager I want to be able to copy function input for updating PrizeTiers through Etherscan as a back up (stretch) As a depositor/manager I want to be able to share my configuration with a link