-16.93% is the change from 827 to 687
Calculation steps:
[( 687 - 827 ) ÷ 827] x 100 = -16.93%
Formula
Percentage change = [(687 - 827) / 827] x 100
Subtract the new number by the original number
687 - 827 = -140
-140 ÷ 827 = -0.16928657799274485
-0.16928657799274485 x 100 = -16.93%