-32.42% is the change from 475 to 321
Calculation steps:
[( 321 - 475 ) ÷ 475] x 100 = -32.42%
Formula
Percentage change = [(321 - 475) / 475] x 100
Subtract the new number by the original number
321 - 475 = -154
-154 ÷ 475 = -0.32421052631578945
-0.32421052631578945 x 100 = -32.42%