-39.77% is the change from 533 to 321
Calculation steps:
[( 321 - 533 ) ÷ 533] x 100 = -39.77%
Formula
Percentage change = [(321 - 533) / 533] x 100
Subtract the new number by the original number
321 - 533 = -212
-212 ÷ 533 = -0.3977485928705441
-0.3977485928705441 x 100 = -39.77%