-6.34% is the change from 993 to 930
Calculation steps:
[( 930 - 993 ) ÷ 993] x 100 = -6.34%
Formula
Percentage change = [(930 - 993) / 993] x 100
Subtract the new number by the original number
930 - 993 = -63
-63 ÷ 993 = -0.0634441087613293
-0.0634441087613293 x 100 = -6.34%