nft-booster.js

// Given the assetName of LBE NFT, return the booster rate from 110% to 200%
function getBoosterRate(nftName) {
  if (nftName.length !== 32) {
    throw new Error('NFT name must have 32 chars')
  }
  let sum = 0
  // only the first 30 chars of NFT name is tied to the wallet
  // we calculate booster rate from the first 30 chars
  for (let i = 0; i < 30; i++) {
    sum += nftName.charCodeAt(i)
  }
  return 110 + (sum % 10) * 10
}

console.log(getBoosterRate("ZY8B1n0vVm6+11geNb7b8QASBfs9Jz05"))