-93.67% is the change from 332 to 21
Calculation steps:
[( 21 - 332 ) ÷ 332] x 100 = -93.67%
Formula
Percentage change = [(21 - 332) / 332] x 100
Subtract the new number by the original number
21 - 332 = -311
-311 ÷ 332 = -0.9367469879518072
-0.9367469879518072 x 100 = -93.67%