I took the index on the words, transformed the amount to binary, extra 3 zeros, calculated the sha256 digest, took the primary A part of the hexadecimal to convert it to binary, added a few zeros towards the 8 digits in the binary and acquired 00000010011 which translates to 19 https://social40.com/story4409045/how-much-you-need-to-expect-you-ll-pay-for-a-good-bip39-definition