-40.79% is the change from 993 to 588
Calculation steps:
[( 588 - 993 ) ÷ 993] x 100 = -40.79%
Formula
Percentage change = [(588 - 993) / 993] x 100
Subtract the new number by the original number
588 - 993 = -405
-405 ÷ 993 = -0.4078549848942598
-0.4078549848942598 x 100 = -40.79%