-77.09% is the change from 323 to 74
Calculation steps:
[( 74 - 323 ) ÷ 323] x 100 = -77.09%
Formula
Percentage change = [(74 - 323) / 323] x 100
Subtract the new number by the original number
74 - 323 = -249
-249 ÷ 323 = -0.7708978328173375
-0.7708978328173375 x 100 = -77.09%