-76.17% is the change from 491 to 117
Calculation steps:
[( 117 - 491 ) ÷ 491] x 100 = -76.17%
Formula
Percentage change = [(117 - 491) / 491] x 100
Subtract the new number by the original number
117 - 491 = -374
-374 ÷ 491 = -0.7617107942973523
-0.7617107942973523 x 100 = -76.17%