-33.67% is the change from 686 to 455
Calculation steps:
[( 455 - 686 ) ÷ 686] x 100 = -33.67%
Formula
Percentage change = [(455 - 686) / 686] x 100
Subtract the new number by the original number
455 - 686 = -231
-231 ÷ 686 = -0.336734693877551
-0.336734693877551 x 100 = -33.67%