-35.64% is the change from 491 to 316
Calculation steps:
[( 316 - 491 ) ÷ 491] x 100 = -35.64%
Formula
Percentage change = [(316 - 491) / 491] x 100
Subtract the new number by the original number
316 - 491 = -175
-175 ÷ 491 = -0.3564154786150713
-0.3564154786150713 x 100 = -35.64%