-38.78% is the change from 998 to 611
Calculation steps:
[( 611 - 998 ) ÷ 998] x 100 = -38.78%
Formula
Percentage change = [(611 - 998) / 998] x 100
Subtract the new number by the original number
611 - 998 = -387
-387 ÷ 998 = -0.3877755511022044
-0.3877755511022044 x 100 = -38.78%