-48.97% is the change from 974 to 497
Calculation steps:
[( 497 - 974 ) ÷ 974] x 100 = -48.97%
Formula
Percentage change = [(497 - 974) / 974] x 100
Subtract the new number by the original number
497 - 974 = -477
-477 ÷ 974 = -0.48973305954825463
-0.48973305954825463 x 100 = -48.97%