The phrase "an additional rating of" is correct and usable in written English.
It can be used when referring to an extra evaluation or score that is being added to an existing set of ratings.
Example: "The product received an additional rating of four stars after the latest review."
Alternatives: "a supplementary rating of" or "an extra rating of".
We have a basic rate, a higher rate and an additional rate of income tax, with a different set of rates for dividends and yet another for savings.
Each country might then continue to set its own CIT rate on this common base, with a minimum rate of around 20%, and with an additional rate on the order of 10% to be levied at the federal level.
Given that the overall sequence identity of the two enzymes is only ∼35%, the rest of the sequence changes must contribute an additional rate enhancement of 30-fold to account for the approximately 1000-fold ratin in kcat/ Km for hydrolysis of cefotaxime catalyzed by CTX-M-14 compared to its hydrolysis by TEM-1.
Note that since measurement data for the intermediate Ga3P were unavailable, we include an additional rate denoting depletion of FBP.
Tesco, for example, charges a flat additional rate of £12, while Saga charges an extra £10 a year per pet.
A mathematical equation describing the additional rate of elimination due to breast-feeding (Equation 3) is based on the observed effect of breast-feeding in a cohort of German women (Wittsiepe et al. 2007).
The new tax would be a charge of 15% on unearned income and income from investment, only applying to those paying the additional rate of tax for earnings of £150,000 a year or more.
In 2014 we introduced a higher rate of stamp duty for properties over £1.5m and from April 2016 additional properties will face additional rates of stamp duty.
The upper simulated percentage of women undergoing a mammography for the same period was 74%, corresponding to a 46% participation rate in organised screening with an additional 28% rate of opportunistic screening.
Simultaneously, the concentration of GATA-1 increases by using an additional synthesis rate of GATA-1, which is proportional to the removal of GATA-2.
