-36.77% is the change from 998 to 631
Calculation steps:
[( 631 - 998 ) ÷ 998] x 100 = -36.77%
Formula
Percentage change = [(631 - 998) / 998] x 100
Subtract the new number by the original number
631 - 998 = -367
-367 ÷ 998 = -0.36773547094188375
-0.36773547094188375 x 100 = -36.77%