80% of Roshel's amount was $323 more than Glen's amount. When Roshel spent 55% of her amount and Glen spent 20% of his amount, they had the same amount of amount left. Find the amount that Glen had at first.

	80% of Roshel's amount	Roshel's amount	Glen's amount
Before	64 u	80 u	45 u
Change		- 44 u (- 55%)	- 9 u (- 20%)
After		36 u	36 u

Percentage of Roshel's amount left
= 100% - 55%
= 45%

Percentage of Glen's amount left
= 100% - 20%
= 80%

45% = ⁴⁵₁₀₀ = ⁹₂₀
80% = ⁸⁰₁₀₀ = ⁴₅

The amounts of amount that Roshel and Glen had left were the same.
Make the numerators the same.

⁹₂₀ of Roshel's amount = ⁴₅ of Glen's amount
³⁶₈₀ of Roshel's amount = ³⁶₄₅ of Glen's amount

Amount that Roshel had = 80 u

80% of the amount that Roshel had
= 80 u x 80%
= 80 u x ⁸⁰₁₀₀
= 64 u

Difference between 80% of Roshel's amount and Glen's amount
= 64 u - 45 u 
= 19 u

19 u = 323
1 u = 323 ÷ 19 = 17

Amount that Glen had at first
= 45 u
= 45 x 17
= $765

Answer(s): $765