EBA Remuneration Diversity Benchmarking - R23.00 - Reporting of not applicable (n/a) gender pay gap

What should be reported in template R23.00 if the gender pay gap cannot be calculated?

As per the final report on the Guidelines on benchmarking of diversity practices, including diversity policies and gender pay gap, under Directive 2013/36/EU and Directive (EU) 2019/2034 "When the gender pay gap between male and female members or the pay gap between male and non-binary members cannot be calculated as the category does not contain both of the respective genders, institutions and investment firms should provide the value ‘n/a’ (not available) instead of calculating the percentage." This is contradictory with the defined metric type (pi935, pi936) because "n/a" cannot be considered as a percentage item, since it is a string. Also, in the template layout, the following is stated: "[4] Or if it cannot be calculated, as the below category does not comprise male and female directors, please indicate not-available (n/a)".