mp_units::operator%

template<
    std::derived_from<quantity> Q,
    auto R2,
    typename Rep2>
requires (!treat_as_floating_point<Rep>) && (!treat_as_floating_point<Rep2>) &&
            detail::CommonlyInvocableQuantities<std::modulus<>, quantity, quantity<R2, Rep2>>
[[nodiscard]]
constexpr
Quantity auto
operator%(
    Q const& lhs,
    quantity<R2, Rep2> const& rhs);