-41.32% is the change from 547 to 321
Calculation steps:
[( 321 - 547 ) ÷ 547] x 100 = -41.32%
Formula
Percentage change = [(321 - 547) / 547] x 100
Subtract the new number by the original number
321 - 547 = -226
-226 ÷ 547 = -0.41316270566727603
-0.41316270566727603 x 100 = -41.32%