-28.98% is the change from 421 to 299
Calculation steps:
[( 299 - 421 ) ÷ 421] x 100 = -28.98%
Formula
Percentage change = [(299 - 421) / 421] x 100
Subtract the new number by the original number
299 - 421 = -122
-122 ÷ 421 = -0.28978622327790976
-0.28978622327790976 x 100 = -28.98%