-49.59% is the change from 974 to 491
Calculation steps:
[( 491 - 974 ) ÷ 974] x 100 = -49.59%
Formula
Percentage change = [(491 - 974) / 974] x 100
Subtract the new number by the original number
491 - 974 = -483
-483 ÷ 974 = -0.49589322381930184
-0.49589322381930184 x 100 = -49.59%