-75.18% is the change from 556 to 138
Calculation steps:
[( 138 - 556 ) ÷ 556] x 100 = -75.18%
Formula
Percentage change = [(138 - 556) / 556] x 100
Subtract the new number by the original number
138 - 556 = -418
-418 ÷ 556 = -0.7517985611510791
-0.7517985611510791 x 100 = -75.18%