-41.14% is the change from 999 to 588
Calculation steps:
[( 588 - 999 ) ÷ 999] x 100 = -41.14%
Formula
Percentage change = [(588 - 999) / 999] x 100
Subtract the new number by the original number
588 - 999 = -411
-411 ÷ 999 = -0.4114114114114114
-0.4114114114114114 x 100 = -41.14%