-41.4% is the change from 686 to 402
Calculation steps:
[( 402 - 686 ) ÷ 686] x 100 = -41.4%
Formula
Percentage change = [(402 - 686) / 686] x 100
Subtract the new number by the original number
402 - 686 = -284
-284 ÷ 686 = -0.4139941690962099
-0.4139941690962099 x 100 = -41.4%