-17.31% is the change from 832 to 688
Calculation steps:
[( 688 - 832 ) ÷ 832] x 100 = -17.31%
Formula
Percentage change = [(688 - 832) / 832] x 100
Subtract the new number by the original number
688 - 832 = -144
-144 ÷ 832 = -0.17307692307692307
-0.17307692307692307 x 100 = -17.31%