MOD = 10**9 + 7

def main():
    import sys
    input = sys.stdin.read
    data = input().split()
    N = int(data[0])
    M = int(data[1])
    P = int(data[2])
    V = list(map(int, data[3:3+N]))
    V.sort(reverse=True)
    
    inv100 = pow(100, MOD-2, MOD)
    q = (100 - P) * inv100 % MOD
    
    q_pows = [1] * (N + 1)
    for i in range(1, N + 1):
        q_pows[i] = q_pows[i-1] * q % MOD
    
    ans = 0
    for i in range(1, N + 1):
        term = (1 - q_pows[i]) % MOD
        term_pow = pow(term, M, MOD)
        prob = (1 - term_pow) % MOD
        ans = (ans + V[i-1] * prob) % MOD
    
    print(ans % MOD)

if __name__ == "__main__":
    main()