-38.98% is the change from 254 to 155
Calculation steps:
[( 155 - 254 ) ÷ 254] x 100 = -38.98%
Formula
Percentage change = [(155 - 254) / 254] x 100
Subtract the new number by the original number
155 - 254 = -99
-99 ÷ 254 = -0.38976377952755903
-0.38976377952755903 x 100 = -38.98%