Final answer:
To find the original attack points before a 15% increase that resulted in 460 points, divide the increased amount by 1.15. The calculation reveals that the regular attack is 400 points.
Step-by-step explanation:
The student is asking how to find the original attack value before a 15% increase given that the increased attack is 460 points. To solve this, we use the concept of percentage increase. The formula to find the original amount before the percentage increase is Original Amount = Increased Amount / (1 + Percentage Increase).
We've been told that the 'Purple Fury' spell increases attack points by 15%, which means the Percentage Increase is 15% or 0.15 in decimal form. The increased attack points after the spell is cast is 460. We substitute these values into the formula:
Original Attack = 460 / (1 + 0.15)
Original Attack = 460 / 1.15
Original Attack = 400
Therefore, the regular attack before the 'Purple Fury' spell is cast is 400 points.