-48.08% is the change from 624 to 324
Calculation steps:
[( 324 - 624 ) ÷ 624] x 100 = -48.08%
Formula
Percentage change = [(324 - 624) / 624] x 100
Subtract the new number by the original number
324 - 624 = -300
-300 ÷ 624 = -0.4807692307692308
-0.4807692307692308 x 100 = -48.08%