-6.21% is the change from 998 to 936
Calculation steps:
[( 936 - 998 ) ÷ 998] x 100 = -6.21%
Formula
Percentage change = [(936 - 998) / 998] x 100
Subtract the new number by the original number
936 - 998 = -62
-62 ÷ 998 = -0.06212424849699399
-0.06212424849699399 x 100 = -6.21%