In October, Howard gave his wife, Jaslyn, $8000 for household expenditure. Jaslyn spent 60% of the sum on rental, 20% on food and saved the rest. In November, Howard reduced the sum he gave to Jaslyn. Jaslyn spent the same amount on rental and reduced the amount she spent on food by 25%. She saved the remaining 20% of the sum given to her in November. By what percentage was the sum given to Jaslyn reduced by?

	Rental	Food	Savings	Total
Before	60%	20%	20%	$8000
Change		- 5%	- ?	- ?
After	60%	15%
Comparing the amounts spent in November	80 u		20 u	100 u

Amount that Howard saved in percent
= 100% - 60% - 20%
= 20%

Amount that Howard reduced on food in percent
= 25% x 20%
= ²⁵₁₀₀ x 20
= 5%

Total amount that Howard spent on rental and food in percent
= 60% + 15%
= 75%

100% → 8000

1% → 8000 ÷ 100 = 80

75% → 75 x  80 = 6000

The total amount that Howard spent on rental and food is repeated. 

80 u = 75% 

80 u = 6000

1 u = 6000 ÷ 80 = 75

Amount that Howard gave to Jaslyn in November
= 100 u
= 100 x 75
= $7500

Amount that Jaslyn received less from Howard from October to November
= 8000 - 7500
= $500

Percentage that the sum given to Jaslyn was reduced by from October to November
= ⁵⁰⁰₈₀₀₀ x 100%
= 6.25%

Answer(s): 6.25%