-84.93% is the change from 491 to 74
Calculation steps:
[( 74 - 491 ) ÷ 491] x 100 = -84.93%
Formula
Percentage change = [(74 - 491) / 491] x 100
Subtract the new number by the original number
74 - 491 = -417
-417 ÷ 491 = -0.8492871690427699
-0.8492871690427699 x 100 = -84.93%