For quick and dirty I’d probably just go with 3738 = 4040 -> 16% which is kinda close to 14% eh?
Quick and dirty and accurate is 38=40-2. So 38x37=(40-2)x37=40x37-2x37=1480-74=1406
For quick and dirty I’d probably just go with 3738 = 4040 -> 16% which is kinda close to 14% eh?
Quick and dirty and accurate is 38=40-2. So 38x37=(40-2)x37=40x37-2x37=1480-74=1406