-77.54% is the change from 993 to 223
Calculation steps:
[( 223 - 993 ) ÷ 993] x 100 = -77.54%
Formula
Percentage change = [(223 - 993) / 993] x 100
Subtract the new number by the original number
223 - 993 = -770
-770 ÷ 993 = -0.7754279959718026
-0.7754279959718026 x 100 = -77.54%