-79.05% is the change from 611 to 128
Calculation steps:
[( 128 - 611 ) ÷ 611] x 100 = -79.05%
Formula
Percentage change = [(128 - 611) / 611] x 100
Subtract the new number by the original number
128 - 611 = -483
-483 ÷ 611 = -0.79050736497545
-0.79050736497545 x 100 = -79.05%