118.75% is the change from 128 to 280
Calculation steps:
[( 280 - 128 ) ÷ 128] x 100 = 118.75%
Formula
Percentage change = [(280 - 128) / 128] x 100
Subtract the new number by the original number
280 - 128 = 152
152 ÷ 128 = 1.1875
1.1875 x 100 = 118.75%