\[(400\%:130\%){x}^{100}-100\%\]

1
Simplify  400%400\%  to  44.
(4:130%)x100100%(4:130\%){x}^{100}-100\%

2
Simplify  130%130\%  to  1.31.3.
(4:1.3)x100100%(4:1.3){x}^{100}-100\%

3
Simplify  100%100\%  to  11.
(4:1.3)x1001(4:1.3){x}^{100}-1

4
Simplify negative sign.
(4:1.3x100)1(4:1.3{x}^{100})-1

Done

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