-64.9% is the change from 923 to 324
Calculation steps:
[( 324 - 923 ) ÷ 923] x 100 = -64.9%
Formula
Percentage change = [(324 - 923) / 923] x 100
Subtract the new number by the original number
324 - 923 = -599
-599 ÷ 923 = -0.6489707475622969
-0.6489707475622969 x 100 = -64.9%