-40.28% is the change from 988 to 590
Calculation steps:
[( 590 - 988 ) ÷ 988] x 100 = -40.28%
Formula
Percentage change = [(590 - 988) / 988] x 100
Subtract the new number by the original number
590 - 988 = -398
-398 ÷ 988 = -0.402834008097166
-0.402834008097166 x 100 = -40.28%