#price ul {
    margin: 55px 0;
}
#price ul li {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    margin-bottom: 15px;
    padding: 25px 20px;
    background: #eff7eb;
    border-radius: 8px;
}
#price ul li p {
    width: calc( 100% - 250px );
}
#price ul li span {
    font-weight: 500;
    width: 200px;
}

@media screen and (max-width: 600px) {
    #price ul li {
        display: block;
    }
    #price ul li p {
        margin-bottom: 7px;
        width: 100%;
    }
}