70% of Julie's amount was $136 more than Cole's amount. When Julie spent 55% of her amount and Cole spent 30% of his amount, they had the same amount of amount left. Find the amount that Cole had at first.

	70% of Julie's amount	Julie's amount	Cole's amount
Before	98 u	140 u	90 u
Change		- 77 u (- 55%)	- 27 u (- 30%)
After		63 u	63 u

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

Percentage of Cole's amount left
= 100% - 30%
= 70%

45% = ⁴⁵₁₀₀ = ⁹₂₀
70% = ⁷⁰₁₀₀ = ⁷₁₀

The amounts of amount that Julie and Cole had left were the same.
Make the numerators the same.

⁹₂₀ of Julie's amount = ⁷₁₀ of Cole's amount
⁶³₁₄₀ of Julie's amount = ⁶³₉₀ of Cole's amount

Amount that Julie had = 140 u

70% of the amount that Julie had
= 140 u x 70%
= 140 u x ⁷⁰₁₀₀
= 98 u

Difference between 70% of Julie's amount and Cole's amount
= 98 u - 90 u 
= 8 u

8 u = 136
1 u = 136 ÷ 8 = 17

Amount that Cole had at first
= 90 u
= 90 x 17
= $1530

Answer(s): $1530