formula

<use xlink:href="/assets-global/icons/svg-sprite.svg?v=2022-09-27-213753-51bbb20-029194#ico_plus"> <use xlink:href="/assets-global/icons/svg-sprite.svg?v=2022-09-27-213753-51bbb20-029194#ico_minus">

<use xlink:href="/assets-global/icons/svg-sprite.svg?v=2022-09-27-213753-51bbb20-029194#ico_plus"> <use xlink:href="/assets-global/icons/svg-sprite.svg?v=2022-09-27-213753-51bbb20-029194#ico_minus">

<use xlink:href="/assets-global/icons/svg-sprite.svg?v=2022-09-27-213753-51bbb20-029194#ico_plus"> <use xlink:href="/assets-global/icons/svg-sprite.svg?v=2022-09-27-213753-51bbb20-029194#ico_minus">

<use xlink:href="/assets-global/icons/svg-sprite.svg?v=2022-09-27-213753-51bbb20-029194#ico_plus"> <use xlink:href="/assets-global/icons/svg-sprite.svg?v=2022-09-27-213753-51bbb20-029194#ico_minus">

<use xlink:href="/assets-global/icons/svg-sprite.svg?v=2022-09-27-213753-51bbb20-029194#ico_plus"> <use xlink:href="/assets-global/icons/svg-sprite.svg?v=2022-09-27-213753-51bbb20-029194#ico_minus">