#include <float.h>
#include <limits.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>

// 内部定数
#define D_MOD			1000000007								// 除数(10の9乗+7)
#define D_FISH_MAX		100005									// 最大魚数
#define D_FACT_MAX		D_FISH_MAX								// 最大階乗数

// 内部変数
static FILE *szpFpI;											// 入力
static int siFCnt;												// 魚数
static int siPCnt;												// ポイ数
static int siFRate;												// 破損率
static int si1Val[D_FISH_MAX];									// 価値[魚]
static int si1SRate[D_FISH_MAX];								// 連続成功率
static int si1FRate[D_FISH_MAX];								// 連続失敗率
static int si1HRate[D_FISH_MAX * 2];							// 百分率(逆元)
static int si1ModFact[D_FACT_MAX];								// 階乗リスト
static int si1ModFactR[D_FACT_MAX];								// 階乗リスト(逆元)

// 内部変数 - テスト用
#ifdef D_TEST
	static int siRes;
	static FILE *szpFpA;
	static int siTNo;
#endif

// 出力
int
fOut(
	char *pcpLine				// <I> １行
)
{
	char lc1Buf[1024];

#ifdef D_TEST
	fgets(lc1Buf, sizeof(lc1Buf), szpFpA);
	if (strcmp(lc1Buf, pcpLine)) {
		siRes = -1;
	}
#else
	printf("%s", pcpLine);
#endif

	return 0;
}

// べき乗 - 取得
int
fGetModPower(
	int piBase					// <I> 基数
	, int piIdx					// <I> 指数
)
{
	// 平方リスト - 作成
	int li1Val[100];
	li1Val[0] = piBase;
	int liCnt = 1;
	int liIdx = 1;
	while (piIdx > liIdx) {
		li1Val[liCnt] = (int)((long long)li1Val[liCnt - 1] * (long long)li1Val[liCnt - 1] % (long long)D_MOD);
		liCnt++;
		liIdx += liIdx;
	}

	// べき乗 - 取得
	int liVal = 1;
	while (piIdx > 0) {
		if (piIdx >= liIdx) {
			piIdx -= liIdx;
			liVal = (int)((long long)liVal * (long long)li1Val[liCnt - 1] % (long long)D_MOD);
		}
		liCnt--;
		liIdx /= 2;
	}

	return liVal;
}

// 階乗リスト - 作成
int
fMakeModFact(
	int piMax					// <I> 最大値
)
{
	int i;

	si1ModFact[0] = 1;
	si1ModFact[1] = 1;
	for (i = 2; i <= piMax; i++) {
		si1ModFact[i] = (int)((long long)si1ModFact[i - 1] * (long long)i % (long long)D_MOD);
	}

	return 0;
}

// 階乗リスト(逆元) - 作成
int
fMakeModFactR(
	int piMax					// <I> 最大値
)
{
	int i;

	for (i = 0; i <= piMax; i++) {
		si1ModFactR[i] = fGetModPower(si1ModFact[i], D_MOD - 2);
	}

	return 0;
}

// 実行メイン
int
fMain(
)
{
	int i;
	char lc1Buf[1024];

	// 魚数・ポイ数・破損率 - 取得
	fgets(lc1Buf, sizeof(lc1Buf), szpFpI);
	sscanf(lc1Buf, "%d%d%d", &siFCnt, &siPCnt, &siFRate);

	// 価値 - 取得
	for (i = 1; i <= siFCnt; i++) {
		fscanf(szpFpI, "%d", &si1Val[i]);
	}
	fgets(lc1Buf, sizeof(lc1Buf), szpFpI);

	// 確率 - セット
	si1SRate[0] = 1;
	for (i = 1; i <= siFCnt; i++) {
		si1SRate[i] = (int)((long long)si1SRate[i - 1] * (long long)(100 - siFRate) % (long long)D_MOD);
	}
	si1FRate[0] = 1;
	for (i = 1; i <= siPCnt; i++) {
		si1FRate[i] = (int)((long long)si1FRate[i - 1] * (long long)siFRate % (long long)D_MOD);
	}
	si1HRate[0] = 1;
	for (i = 1; i <= siFCnt + siPCnt; i++) {
		si1HRate[i] = (int)((long long)si1HRate[i - 1] * (long long)100 % (long long)D_MOD);
	}
	for (i = 1; i <= siFCnt + siPCnt; i++) {
		si1HRate[i] = fGetModPower(si1HRate[i], D_MOD - 2);
	}

	// 階乗リスト - 作成
	fMakeModFact(siFCnt + siPCnt);
	fMakeModFactR(siFCnt + siPCnt);

	// 期待値 - 取得 - 1～siFCnt-1
	int liExp = 0;
	int liSum = 0;
	for (i = 1; i < siFCnt; i++) {
		liSum += si1Val[i];
		liSum %= D_MOD;

		int liVal = liSum;
		liVal = (int)((long long)liVal * (long long)si1SRate[i] % (long long)D_MOD);
		liVal = (int)((long long)liVal * (long long)si1FRate[siPCnt] % (long long)D_MOD);
		liVal = (int)((long long)liVal * (long long)si1HRate[i + siPCnt] % (long long)D_MOD);
		liVal = (int)((long long)liVal * (long long)si1ModFact[i + siPCnt - 1] % (long long)D_MOD);
		liVal = (int)((long long)liVal * (long long)si1ModFactR[i] % (long long)D_MOD);
		liVal = (int)((long long)liVal * (long long)si1ModFactR[siPCnt - 1] % (long long)D_MOD);

		liExp += liVal;
		liExp %= D_MOD;
	}

	// 期待値 - 取得 - siFCnt
	liSum += si1Val[siFCnt];
	liSum %= D_MOD;
	for (i = 0; i < siPCnt; i++) {
		int liVal = liSum;
		liVal = (int)((long long)liVal * (long long)si1SRate[siFCnt] % (long long)D_MOD);
		liVal = (int)((long long)liVal * (long long)si1FRate[i] % (long long)D_MOD);
		liVal = (int)((long long)liVal * (long long)si1HRate[siFCnt + i] % (long long)D_MOD);
		liVal = (int)((long long)liVal * (long long)si1ModFact[siFCnt - 1 + i] % (long long)D_MOD);
		liVal = (int)((long long)liVal * (long long)si1ModFactR[siFCnt - 1] % (long long)D_MOD);
		liVal = (int)((long long)liVal * (long long)si1ModFactR[i] % (long long)D_MOD);

		liExp += liVal;
		liExp %= D_MOD;
	}

	return liExp;
}

// １回実行
int
fOne(
)
{
	int liRet;
	char lc1Buf[1024];

	// 入力 - セット
#ifdef D_TEST
	sprintf(lc1Buf, ".\\Test\\T%d.txt", siTNo);
	szpFpI = fopen(lc1Buf, "r");
	sprintf(lc1Buf, ".\\Test\\A%d.txt", siTNo);
	szpFpA = fopen(lc1Buf, "r");
	siRes = 0;
#else
	szpFpI = stdin;
#endif

	// 実行メイン
	liRet = fMain();

	// 出力
	sprintf(lc1Buf, "%d\n", liRet);
	fOut(lc1Buf);

	// 残データ有無
#ifdef D_TEST
	lc1Buf[0] = '\0';
	fgets(lc1Buf, sizeof(lc1Buf), szpFpA);
	if (strcmp(lc1Buf, "")) {
		siRes = -1;
	}
#endif

	// テストファイルクローズ
#ifdef D_TEST
	fclose(szpFpI);
	fclose(szpFpA);
#endif

	// テスト結果
#ifdef D_TEST
	if (siRes == 0) {
		printf("OK %d\n", siTNo);
	}
	else {
		printf("NG %d\n", siTNo);
	}
#endif

	return 0;
}

// プログラム開始
int
main()
{

#ifdef D_TEST
	int i;
	for (i = D_TEST_SNO; i <= D_TEST_ENO; i++) {
		siTNo = i;
		fOne();
	}
#else
	fOne();
#endif

	return 0;
}