I need help with the steps. I'm getting the wrong answer.

Suppose a normally distributed set of data has a mean of 141 and a standard deviation of 19. Use the 68-95-99.7 rule to determine the percent of scores in the data set expected to be between the scores 122 and 198. Give your answer in decimal form (for example, enter 0.68, NOT 68 or 68%) and keep all decimal places throughout your calculations and in your final answer.