I thought I'd contribute this mnemonic to remember the order of proportions of cell types in the blood from greatest to least.

Everyone Please, Never Let Monkeys Eat Bananas

Everyone - Erythrocytes (5,000,000/mm3)
Please - Platelets (250,000/mm3)

Never - Neutrophils (50-70% leukocytes)
Let - Lymphocytes (20-40% leukocytes)
Monkeys - Monocytes (2-8% leukocytes)
Eat - Eosinophils (1-4% leukocytes)
Bananas - Basophils (0.1% leukocytes)

It's a good way to remember the order of proportions in the blood.
Just remember the order, Chakraborty doesn't expect us to remember the actual values.