Final answer:
To calculate a percentage of a number, multiply the percentage by the number and divide by 100.
Step-by-step explanation:
To calculate a percentage of a number, you multiply the percentage by the number and divide by 100. Here are the calculations:
a) 83% of £408 = 0.83 * £408 = £338.64
b) 41% of 53 kg = 0.41 * 53 kg = 21.73 kg
c) 97% of 345 km = 0.97 * 345 km = 334.65 km