Calculation

<svg
    xmlns="http://www.w3.org/2000/svg"
    width="512"
    height="512"
    viewBox="0 0 512 512"
>
    <linearGradient
        id="a"
        x1="-.7"
        x2="485.85"
        y1="87.5"
        y2="87.5"
        gradientUnits="userSpaceOnUse"
    >
        <stop offset="0" stop-color="#7738c8" />
        <stop offset="1" stop-color="#461d93" />
    </linearGradient>
    <linearGradient
        id="b"
        x1="-.7"
        x2="485.85"
        y1="297.5"
        y2="297.5"
        href="#a"
    />
    <linearGradient id="c" x1="-.7" x2="485.85" y1="256" y2="256" href="#a" />
    <linearGradient
        id="d"
        x1="-.7"
        x2="485.85"
        y1="414.84"
        y2="414.84"
        href="#a"
    />
    <linearGradient
        id="e"
        x1="-.7"
        x2="485.85"
        y1="304.84"
        y2="304.84"
        href="#a"
    />
    <linearGradient id="f" x1="-.7" x2="485.85" y1="72.5" y2="72.5" href="#a" />
    <linearGradient
        id="g"
        x1="-.7"
        x2="485.85"
        y1="102.5"
        y2="102.5"
        href="#a"
    />
    <path
        fill="url(#a)"
        d="M317.5 40h-170a7.5 7.5 0 0 0-7.5 7.5v80a7.5 7.5 0 0 0 7.5 7.5h170a7.5 7.5 0 0 0 7.5-7.5v-80a7.5 7.5 0 0 0-7.5-7.5zm-7.5 80H155V55h155z"
    />
    <path
        fill="url(#b)"
        d="M272.5 420H250V247.5a7.5 7.5 0 0 0-7.5-7.5h-30a7.5 7.5 0 0 0-7.5 7.5V420h-20V167.5a7.5 7.5 0 0 0-7.5-7.5h-30a7.5 7.5 0 0 0-7.5 7.5V420h-20V307.5a7.5 7.5 0 0 0-7.5-7.5h-30a7.5 7.5 0 0 0-7.5 7.5V420H52.5a7.5 7.5 0 0 0 0 15h220a7.5 7.5 0 0 0 0-15zM220 255h15v165h-15zm-65-80h15v245h-15zM90 315h15v105H90z"
    />
    <path
        fill="url(#c)"
        d="M484.5 237H365V7.5a7.5 7.5 0 0 0-7.5-7.5h-280a7.47 7.47 0 0 0-5.3 2.2l-70 70A7.47 7.47 0 0 0 0 77.5v390a7.5 7.5 0 0 0 7.5 7.5H307v9.5a27.54 27.54 0 0 0 27.5 27.5h150a27.54 27.54 0 0 0 27.5-27.5v-220a27.54 27.54 0 0 0-27.5-27.5zM70 25.61V70H25.61zM307 264.5V460H15V85h62.5a7.5 7.5 0 0 0 7.5-7.5V15h265v222h-15.5a27.54 27.54 0 0 0-27.5 27.5zm190 220a12.52 12.52 0 0 1-12.5 12.5h-150a12.52 12.52 0 0 1-12.5-12.5v-220a12.52 12.52 0 0 1 12.5-12.5h150a12.52 12.52 0 0 1 12.5 12.5z"
    />
    <path
        fill="url(#d)"
        d="M464.5 357.34h-110a7.5 7.5 0 0 0-7.5 7.5v100a7.5 7.5 0 0 0 7.5 7.5h110a7.5 7.5 0 0 0 7.5-7.5v-100a7.5 7.5 0 0 0-7.5-7.5zm-7.5 50h-40v-35h40zm-55-35v35h-40v-35zm-40 50h40v35h-40zm55 35v-35h40v35z"
    />
    <path
        fill="url(#e)"
        d="M464.5 277.34h-110a7.5 7.5 0 0 0-7.5 7.5v40a7.5 7.5 0 0 0 7.5 7.5h110a7.5 7.5 0 0 0 7.5-7.5v-40a7.5 7.5 0 0 0-7.5-7.5zm-7.5 40h-95v-25h95z"
    />
    <path
        fill="url(#f)"
        d="M217.5 80h70a7.5 7.5 0 0 0 0-15h-70a7.5 7.5 0 0 0 0 15zM177.5 80h10a7.5 7.5 0 0 0 0-15h-10a7.5 7.5 0 0 0 0 15z"
    />
    <path
        fill="url(#g)"
        d="M177.5 110h110a7.5 7.5 0 0 0 0-15h-110a7.5 7.5 0 0 0 0 15z"
    />
</svg>