-49.17% is the change from 966 to 491
Calculation steps:
[( 491 - 966 ) ÷ 966] x 100 = -49.17%
Formula
Percentage change = [(491 - 966) / 966] x 100
Subtract the new number by the original number
491 - 966 = -475
-475 ÷ 966 = -0.4917184265010352
-0.4917184265010352 x 100 = -49.17%