"modest rate" is correct and usable in written English.
You can use it when describing something that is of an average or below-average rate. For example: "The hotel offers a modest rate for its services."
Prices have been stable for 30 years, with continuous increases at a modest rate".
Moody's action followed a more modest rate cut by Standard & Poor 'son Thursday.
This trend continued, although at a more modest rate, into the 21st century.
But economists questioned whether that relatively modest rate could be sustained.
Consumer prices have been rising at a modest rate as well.
But the modest rate of growth suggests unemployment will remain a problem.
The capital is recycled over a five year period and offers our investors a modest rate of return.
The new living wage will rise at a relatively modest rate, reaching £9 an hour by 2020.
The new national living wage will rise at a relatively modest rate, reaching £9 an hour by 2020.
They lamented that the state had not yet set up, as promised, a faster approval procedure for modest rate increases.
Measured on month to month, the index rose at a more modest rate of 0.2percentt in November.
