Question

Michael had $840. He donated 30% of the money and spent 40%. How much money did he have left?

Answer 1

donated %= 30
spent %= 40
so money left %= 100-(30+40)= 30

so required answer is 30/100*840= 252$

Answer 2

840*30/100=252

840*40/100=336

336+252=588

840-588=252

answer is$252
is left with him