-71.5% is the change from 993 to 283
Calculation steps:
[( 283 - 993 ) ÷ 993] x 100 = -71.5%
Formula
Percentage change = [(283 - 993) / 993] x 100
Subtract the new number by the original number
283 - 993 = -710
-710 ÷ 993 = -0.7150050352467271
-0.7150050352467271 x 100 = -71.5%