-30.75% is the change from 709 to 491
Calculation steps:
[( 491 - 709 ) ÷ 709] x 100 = -30.75%
Formula
Percentage change = [(491 - 709) / 709] x 100
Subtract the new number by the original number
491 - 709 = -218
-218 ÷ 709 = -0.307475317348378
-0.307475317348378 x 100 = -30.75%