I. My calculations provided .67 cents is this true?

A note card company has found that the marginal cost per card of producing x note cards is given by the function below, where C'(x) is the marginal cost, in cents, per card Find the total cost of producing 910 cards disregarding ary fixed costs. C'(x)= -0.06x + 82, for x $ 1000 The total cost is 67 conts