-74.09% is the change from 494 to 128
Calculation steps:
[( 128 - 494 ) ÷ 494] x 100 = -74.09%
Formula
Percentage change = [(128 - 494) / 494] x 100
Subtract the new number by the original number
128 - 494 = -366
-366 ÷ 494 = -0.7408906882591093
-0.7408906882591093 x 100 = -74.09%