-92.55% is the change from 282 to 21
Calculation steps:
[( 21 - 282 ) ÷ 282] x 100 = -92.55%
Formula
Percentage change = [(21 - 282) / 282] x 100
Subtract the new number by the original number
21 - 282 = -261
-261 ÷ 282 = -0.925531914893617
-0.925531914893617 x 100 = -92.55%