I took the index with the words, converted the amount to binary, added a few zeros, calculated the sha256 digest, took the primary Element of the hexadecimal to transform it to binary, additional three zeros into the 8 digits from the binary and bought 00000010011 which interprets to 19 in https://7bookmarks.com/story19479545/how-much-you-need-to-expect-you-ll-pay-for-a-good-valid-bip39-seed-phrase