-94.03% is the change from 352 to 21
Calculation steps:
[( 21 - 352 ) ÷ 352] x 100 = -94.03%
Formula
Percentage change = [(21 - 352) / 352] x 100
Subtract the new number by the original number
21 - 352 = -331
-331 ÷ 352 = -0.9403409090909091
-0.9403409090909091 x 100 = -94.03%