-18.47% is the change from 157 to 128
Calculation steps:
[( 128 - 157 ) ÷ 157] x 100 = -18.47%
Formula
Percentage change = [(128 - 157) / 157] x 100
Subtract the new number by the original number
128 - 157 = -29
-29 ÷ 157 = -0.18471337579617833
-0.18471337579617833 x 100 = -18.47%