-89.76% is the change from 293 to 30
Calculation steps:
[( 30 - 293 ) ÷ 293] x 100 = -89.76%
Formula
Percentage change = [(30 - 293) / 293] x 100
Subtract the new number by the original number
30 - 293 = -263
-263 ÷ 293 = -0.8976109215017065
-0.8976109215017065 x 100 = -89.76%