-66.62% is the change from 686 to 229
Calculation steps:
[( 229 - 686 ) ÷ 686] x 100 = -66.62%
Formula
Percentage change = [(229 - 686) / 686] x 100
Subtract the new number by the original number
229 - 686 = -457
-457 ÷ 686 = -0.6661807580174927
-0.6661807580174927 x 100 = -66.62%