<section class="row m-b-md">
    <div class="col-sm-12">
        <h3 class="m-b-xs text-black">Next Difficulty (estimate)</h3>
        <p><%= number_with_delimiter(number_with_precision(@coin_info['data']['next_difficulty']['difficulty'], precision: 2), delimiter: ',') %></p>
        <p><span class='<%= "text-#{@change_level}" %>'><%= number_with_precision(@coin_info['data']['next_difficulty']['perc'], precision: 2) %>%</span> change to current</p>
        <p><%= number_with_delimiter(@coin_info['data']['next_difficulty']['retarget_in'], delimiter: ',') %> blocks until difficulty changes</p>
    </div>
</section>

<section class="row m-b-md">
    <div class="col-sm-12">
        <h3 class="m-b-xs text-black">Next Difficulty (estimate)</h3>
        <p><%= number_with_delimiter(number_with_precision(@coin_info['data']['next_difficulty']['difficulty'], precision: 2), delimiter: ',') %></p>
        <p><span class='<%= "text-#{@change_level}" %>'><%= "#{@coin_info['data']['next_difficulty']['perc'] > 0 ? '+' : ''}#{number_with_precision(@coin_info['data']['next_difficulty']['perc'], precision: 2)}" %>%</span> change to current</p>
        <p><%= number_with_delimiter(@coin_info['data']['next_difficulty']['retarget_in'], delimiter: ',') %> blocks until difficulty changes</p>
    </div>
</section>

Add + to positive difficulty changes.
Add + to positive difficulty changes.
