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To convert (a grade) out of (a potential) into (something) out of 100 multiply (a grade) by 100 and divide the result by(a potential) So that 45 out of 50 = (45 x 100) ÷ 50 = 4500 ÷ 50 = 90% or 21 out of 30 = (21 x 100) ÷ 30 = 2100 ÷ 30 = 70%
what grade is a 37/45 letter
30% of 15000 = 15000*30/100 = 4500
No. From 30 to 45 is an increase of 50% . From 45 to 30 is a decrease of 331/3%.
30