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Publication, Part of

Proposed Dispensing Feescales for GMS Contractors, England and Wales - 2021, October release

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Average Annual Volume Change

Table 3: Volume changes from 2018/19 to 2020/21

Year

Total number of fees

Increase on previous year (number)

Increase on previous year (%)

Historical Average Increase (%)

2018/19

85,325,559

N/A

N/A

N/A

2019/20

86,841,867

1,516,308

1.777%

-0.767%

2020/21

84,021,937

-2,819,930

-3.2472%

 

Source: NHS Prescription Services “Dispensing Doctors Report” and “Personal Administration Report” at  https://www.nhsbsa.nhs.uk/prescription-data/dispensing-data/pd1-reports. Total number of prescriptions is the total in column D of each year from the Statistical Data Relating to Personal Administration Claims by Prescribing Doctors added to the totals A & B & C in column E for the Statistical Data Relating to Prescriptions Dispensed by Dispensing Doctors

 

Historical average annual volume change over last two years

Formula to calculate average percentage increase over last two years is:                                                                                                                                                                                                                             

                                                                                                                                                                                                                                                                   

Total fees for 1st year x (1 + A) 2 = Total fees for 3rd year                                                                                                                                                                                                                                                                                                                                                                  

Where A = annual percentage increase                                                                                                                                                                                                                                                                                                                                                                  

                                                                                                                                                                                                                                                                   

85,325,559 x (1 + A) 2 = 84,021,937                                                                                                                                                                                                                                                                                                                                                                  

(1 + A) 2 = 84,021,937 / 85,325,559                                                                                                                                                                                                                                                                                                                                                                  

(1 + A) 2 = 0.9847                                                                                                                                                                                                                

(1 + A) = 0.9847 ½                                                                                                                                                                                                                

(1 + A)  = 0.99233                                                                                                                                                                           

A = 0.99233 -1                                                                                                                                                                                                                     

Therefore A = -0.00767                                                                                                                                                                                                                                             

Average volume increase over 2 years = -0.767 per cent                                                                                                                                                                                                                                                                                                                                                                  

= -0.77 per cent                                                                                                                                                                                                                                             

                           

Note: The Geometric Mean has been used to calculate the average percentage change in fees. The Geometric Mean is a measure of the average value of a set of numbers by using the product of their values (as opposed to the arithmetic mean which uses their sum), and is calculated by multiplying all values together where n is the count of the number of values and then calculating the nth root.


Last edited: 4 October 2021 1:31 pm