That is in tension with using numerals for "Numbers that represent statistical or mathematical functions, fractional or decimal quantities, percentages, ratios.

That is in tension with using numerals for "Numbers that represent statistical or mathematical functions, fractional or decimal quantities, percentages, ratios..." And the tie-breaker is below: If you’re unsure which modifier to write and which to express numerically, try it both ways. Be sure the way you express the numbers is in the clearest way possible.