-86.61% is the change from 993 to 133
Calculation steps:
[( 133 - 993 ) ÷ 993] x 100 = -86.61%
Formula
Percentage change = [(133 - 993) / 993] x 100
Subtract the new number by the original number
133 - 993 = -860
-860 ÷ 993 = -0.8660624370594159
-0.8660624370594159 x 100 = -86.61%