-93.02% is the change from 301 to 21
Calculation steps:
[( 21 - 301 ) ÷ 301] x 100 = -93.02%
Formula
Percentage change = [(21 - 301) / 301] x 100
Subtract the new number by the original number
21 - 301 = -280
-280 ÷ 301 = -0.9302325581395349
-0.9302325581395349 x 100 = -93.02%