-32.63% is the change from 993 to 669
Calculation steps:
[( 669 - 993 ) ÷ 993] x 100 = -32.63%
Formula
Percentage change = [(669 - 993) / 993] x 100
Subtract the new number by the original number
669 - 993 = -324
-324 ÷ 993 = -0.32628398791540786
-0.32628398791540786 x 100 = -32.63%