-73.88% is the change from 490 to 128
Calculation steps:
[( 128 - 490 ) ÷ 490] x 100 = -73.88%
Formula
Percentage change = [(128 - 490) / 490] x 100
Subtract the new number by the original number
128 - 490 = -362
-362 ÷ 490 = -0.7387755102040816
-0.7387755102040816 x 100 = -73.88%