-1.29% is the change from 155 to 153
Calculation steps:
[( 153 - 155 ) ÷ 155] x 100 = -1.29%
Formula
Percentage change = [(153 - 155) / 155] x 100
Subtract the new number by the original number
153 - 155 = -2
-2 ÷ 155 = -0.012903225806451613
-0.012903225806451613 x 100 = -1.29%