-65.6% is the change from 686 to 236
Calculation steps:
[( 236 - 686 ) ÷ 686] x 100 = -65.6%
Formula
Percentage change = [(236 - 686) / 686] x 100
Subtract the new number by the original number
236 - 686 = -450
-450 ÷ 686 = -0.6559766763848397
-0.6559766763848397 x 100 = -65.6%