-58.17% is the change from 306 to 128
Calculation steps:
[( 128 - 306 ) ÷ 306] x 100 = -58.17%
Formula
Percentage change = [(128 - 306) / 306] x 100
Subtract the new number by the original number
128 - 306 = -178
-178 ÷ 306 = -0.5816993464052288
-0.5816993464052288 x 100 = -58.17%