-31.63% is the change from 999 to 683
Calculation steps:
[( 683 - 999 ) ÷ 999] x 100 = -31.63%
Formula
Percentage change = [(683 - 999) / 999] x 100
Subtract the new number by the original number
683 - 999 = -316
-316 ÷ 999 = -0.3163163163163163
-0.3163163163163163 x 100 = -31.63%