Respuesta :
Answer:
%12.5
Step-by-step explanation:
Step 1: Make an equation
400x = 450
Step 2: Divide both sides by 400
400x / 400 = 450 / 400
x = 1.125
Step 3: Convert into a percentage
1.125 * 100
%112.5
The increase is %12.5
Answer: %12.5
This questions shows a percent increase.
Formula: (new value - old value) ÷ old value * 100%
= (450 - 400) ÷ 400 * 100%
= 50 ÷ 400 * 100%
= 0.125 * 100%
= 12.5% increase.
Best of Luck!