“(4) Subject to paragraph (7), where paragraph (1)(b) applies, the court must, unless it considers it unjust to do so, order that the claimant is entitled to- (a) interest on the whole or part of any sum of money (excluding interest) awarded, at a rate not exceeding 10% above base rate for some or all of the period starting with the date on which the relevant period expired; (b) costs (including any recoverable pre-action costs) on the indemnity basis from the date on which the relevant period expired; (c) interest on those costs not only exceeding 10% above base rate; and (d) provided that the case has been decided and there has not been a previous order under this sub-paragraph, an additional amount, which shall not exceed£75,000 , calculated by applying the prescribed percentage…. to (i) the sum awarded to the claimant by the court…” (a) interest on the whole or part of any sum of money (excluding interest) awarded, at a rate not exceeding 10% above base rate for some or all of the period starting with the date on which the relevant period expired; (b) costs (including any recoverable pre-action costs) on the indemnity basis from the date on which the relevant period expired; (c) interest on those costs not only exceeding 10% above base rate; and (d) provided that the case has been decided and there has not been a previous order under this sub-paragraph, an additional amount, which shall not exceed£75,000 , calculated by applying the prescribed percentage….
“76. I do have to consider, however, to precisely what part of my award the prescribed percentage applies in calculating the additional amount. The basic monetary award is£360,000 , to which interest has been added, for part of the period at 10% above base. I have also awarded costs. 77. It is conceded by the liquidator that, in calculating the additional amount, I ignore the amount of any costs awarded, even though the costs will, eventually, be translated into a monetary award. There is no concession regarding interest, however. Mr Dean says I apply the prescribed percentage to all the interest I have awarded. Mr Eaton Turner says I do not apply the prescribed percentage to interest at all.”
“Where the court awards interest under this rule and also awards interest on the same sum and for the same period under any other power, the total rate of interest may not exceed 10% above base rate.”
“79. As I have awarded 10% above base rate for part of the period in question, it might be thought that the effect of sub-rule (5) is to preclude me from applying an additional amount in respect of interest. 80. As a matter of strict construction, any amount payable under [CPR 36.17 (4) (d)] does not fall within [(6)] because the court is not awarding interest under (d); it is simply awarding “an additional amount” calculated in a particular way. However, the commercial effect would be to turn what is a maximum interest rate of 10% above base (when ordered) into 11% above base, which is surprising. 81. In those circumstances it seems to me that what the court is looking at under (d)(i) is the basic monetary award not including interest. Accordingly, in my judgment, [CPR 36.17 (4)(d)] does not require the court to apply the prescribed percentage to an award of interest, in just the same way as (except in the case of a non- monetary claim, where costs are expressly mentioned) the prescribed percentage does not, on the concession made before me, apply to costs.”