-81.66% is the change from 398 to 73
Calculation steps:
[( 73 - 398 ) ÷ 398] x 100 = -81.66%
Formula
Percentage change = [(73 - 398) / 398] x 100
Subtract the new number by the original number
73 - 398 = -325
-325 ÷ 398 = -0.8165829145728644
-0.8165829145728644 x 100 = -81.66%