"Up to 40%"? How much really? Please use real numbers not media corporate-speak nonsense. "We lost a limited number of customer records" which can translate to all but one.
We've been monitoring TLS at the bank I work for since 2014. Non-TLS 1.2 (not TLS 1.1; nobody uses that) has been at 1.5% (notice the dot?) for over a year.
TLS 1.1 has been below one percent since we started monitoring and is now below one one-hundredth of a percent.