-81.45% is the change from 399 to 74
Calculation steps:
[( 74 - 399 ) ÷ 399] x 100 = -81.45%
Formula
Percentage change = [(74 - 399) / 399] x 100
Subtract the new number by the original number
74 - 399 = -325
-325 ÷ 399 = -0.8145363408521303
-0.8145363408521303 x 100 = -81.45%