-98.29% is the change from 993 to 17
Calculation steps:
[( 17 - 993 ) ÷ 993] x 100 = -98.29%
Formula
Percentage change = [(17 - 993) / 993] x 100
Subtract the new number by the original number
17 - 993 = -976
-976 ÷ 993 = -0.9828801611278952
-0.9828801611278952 x 100 = -98.29%