-9.3% is the change from 355 to 322
Calculation steps:
[( 322 - 355 ) ÷ 355] x 100 = -9.3%
Formula
Percentage change = [(322 - 355) / 355] x 100
Subtract the new number by the original number
322 - 355 = -33
-33 ÷ 355 = -0.09295774647887324
-0.09295774647887324 x 100 = -9.3%