90% of Jaslyn's amount was $154 more than Nick's amount. When Jaslyn spent 60% of her amount and Nick spent 25% of his amount, they had the same amount of amount left. Find the amount that Nick had at first.

	90% of Jaslyn's amount	Jaslyn's amount	Nick's amount
Before	13.5 u	15 u	8 u
Change		- 9 u (- 60%)	- 2 u (- 25%)
After		6 u	6 u

Percentage of Jaslyn's amount left
= 100% - 60%
= 40%

Percentage of Nick's amount left
= 100% - 25%
= 75%

40% = ⁴⁰₁₀₀ = ²₅
75% = ⁷⁵₁₀₀ = ³₄

The amounts of amount that Jaslyn and Nick had left were the same.
Make the numerators the same.

²₅ of Jaslyn's amount = ³₄ of Nick's amount
⁶₁₅ of Jaslyn's amount = ⁶₈ of Nick's amount

Amount that Jaslyn had = 15 u

90% of the amount that Jaslyn had
= 15 u x 90%
= 15 u x ⁹⁰₁₀₀
= 13.5 u

Difference between 90% of Jaslyn's amount and Nick's amount
= 13.5 u - 8 u 
= 5.5 u

5.5 u = 154
1 u = 154 ÷ 5.5 = 28

Amount that Nick had at first
= 8 u
= 8 x 28
= $224

Answer(s): $224