-17.34% is the change from 836 to 691
Calculation steps:
[( 691 - 836 ) ÷ 836] x 100 = -17.34%
Formula
Percentage change = [(691 - 836) / 836] x 100
Subtract the new number by the original number
691 - 836 = -145
-145 ÷ 836 = -0.173444976076555
-0.173444976076555 x 100 = -17.34%