-18.19% is the change from 841 to 688
Calculation steps:
[( 688 - 841 ) ÷ 841] x 100 = -18.19%
Formula
Percentage change = [(688 - 841) / 841] x 100
Subtract the new number by the original number
688 - 841 = -153
-153 ÷ 841 = -0.18192627824019025
-0.18192627824019025 x 100 = -18.19%