-97.43% is the change from 428 to 11
Calculation steps:
[( 11 - 428 ) ÷ 428] x 100 = -97.43%
Formula
Percentage change = [(11 - 428) / 428] x 100
Subtract the new number by the original number
11 - 428 = -417
-417 ÷ 428 = -0.9742990654205608
-0.9742990654205608 x 100 = -97.43%