book Maths Puzzle Numerical Ability

How do you work out the percentage increase/decrease between two figures?
Example. What is the percent increase/decrease from 41210 to 38853?

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book Other Question

A card is drawn from a standard deck of cards. What is P(heart or a 6)? The sum of two numbers is 208. One-third of the greater number equals the smaller number. What are the numbers?