-2.56% is the change from 156 to 152
Calculation steps:
[( 152 - 156 ) ÷ 156] x 100 = -2.56%
Formula
Percentage change = [(152 - 156) / 156] x 100
Subtract the new number by the original number
152 - 156 = -4
-4 ÷ 156 = -0.02564102564102564
-0.02564102564102564 x 100 = -2.56%