164%. The percentage always starts at right of the decimals so .blahblahblah will always be "blahblahblah percent (.64=64%). But it only counts the first 4 numbers past the decimal so .6405= 64.05% and .64053213232= 64.05%. But if we have numbers to the left of the decimal (1.64), we still only count 4 numbers but it will be more than 100% since there is a 1.