-66.53% is the change from 998 to 334
Calculation steps:
[( 334 - 998 ) ÷ 998] x 100 = -66.53%
Formula
Percentage change = [(334 - 998) / 998] x 100
Subtract the new number by the original number
334 - 998 = -664
-664 ÷ 998 = -0.6653306613226453
-0.6653306613226453 x 100 = -66.53%