-50.21% is the change from 974 to 485
Calculation steps:
[( 485 - 974 ) ÷ 974] x 100 = -50.21%
Formula
Percentage change = [(485 - 974) / 974] x 100
Subtract the new number by the original number
485 - 974 = -489
-489 ÷ 974 = -0.502053388090349
-0.502053388090349 x 100 = -50.21%