Question

Please Help me do this

Answer 1

1. Old value = 5

New value = 10

Percent Change = 10 - 5 / 5 × 100%

= 5/5 × 100%

= 100% (increase)

2. Old value = 40

New value = 20

Percent Change = 20 - 40 / 40 × 100%

= -20/40 × 100%

= -1/2 × 100%

= -50% (decrease)

3. Old value = $50

New value = $40

Percent Change = $40 - $50 / $50 × 100%

= -$10/$50 × 100%

= -1/5 × 100%

= -20% (decrease)