-71.19% is the change from 538 to 155
Calculation steps:
[( 155 - 538 ) ÷ 538] x 100 = -71.19%
Formula
Percentage change = [(155 - 538) / 538] x 100
Subtract the new number by the original number
155 - 538 = -383
-383 ÷ 538 = -0.7118959107806692
-0.7118959107806692 x 100 = -71.19%