-93.03% is the change from 330 to 23
Calculation steps:
[( 23 - 330 ) ÷ 330] x 100 = -93.03%
Formula
Percentage change = [(23 - 330) / 330] x 100
Subtract the new number by the original number
23 - 330 = -307
-307 ÷ 330 = -0.9303030303030303
-0.9303030303030303 x 100 = -93.03%