-92.16% is the change from 306 to 24
Calculation steps:
[( 24 - 306 ) ÷ 306] x 100 = -92.16%
Formula
Percentage change = [(24 - 306) / 306] x 100
Subtract the new number by the original number
24 - 306 = -282
-282 ÷ 306 = -0.9215686274509803
-0.9215686274509803 x 100 = -92.16%