If the answer includes the price, a payoff or a Dollar profit you just need to make sure you round to the correct decimal places and have the correct sign. For instance if the payoff is -10.23232 and you are asked to round to two decimals your answer should be -10.23. If you calculate that the correct answer is 12,324.45 you enter 12324.45 (without the comma, in fact canvas would not allow you to use a comma). For some questions, the answer should be given either as a percentage or not. These are normally questions on weights, expected returns or standard deviations. Example: You calculate a weight of w=0.40232 as the correct answer. If you are asked to provide your answer as a percentage and round to two decimal places you should enter 40.23. You do not need to add the % sign, in fact canvas will not even allow you to use a percentage sign in your answer. If you are only asked to round your answer to two decimal places (without an instruction to provide the answer as a percentage) you should enter 0.40. Note that the rounding depends on whether you should give your answer as a percentage or not. You need to round after converting to percentages and not before