Sum If Between ranges

Hi

I am needing the following result in Column E, if B is over 210 & less than 238 the value *.20P will appear in Column E the maximum for this will be 28 x £0.20 = £5.60
if B is over 238 & to a maximum of 285 the value *.85P will appear in Column F, the Maximum will be 47 x £0.85 = £39.95

Thanks In advance

Thanks so much for your help.