-30.86% is the change from 998 to 690
Calculation steps:
[( 690 - 998 ) ÷ 998] x 100 = -30.86%
Formula
Percentage change = [(690 - 998) / 998] x 100
Subtract the new number by the original number
690 - 998 = -308
-308 ÷ 998 = -0.30861723446893785
-0.30861723446893785 x 100 = -30.86%