-77.39% is the change from 566 to 128
Calculation steps:
[( 128 - 566 ) ÷ 566] x 100 = -77.39%
Formula
Percentage change = [(128 - 566) / 566] x 100
Subtract the new number by the original number
128 - 566 = -438
-438 ÷ 566 = -0.773851590106007
-0.773851590106007 x 100 = -77.39%