-7.05% is the change from 993 to 923
Calculation steps:
[( 923 - 993 ) ÷ 993] x 100 = -7.05%
Formula
Percentage change = [(923 - 993) / 993] x 100
Subtract the new number by the original number
923 - 993 = -70
-70 ÷ 993 = -0.07049345417925479
-0.07049345417925479 x 100 = -7.05%