-42.19% is the change from 538 to 311
Calculation steps:
[( 311 - 538 ) ÷ 538] x 100 = -42.19%
Formula
Percentage change = [(311 - 538) / 538] x 100
Subtract the new number by the original number
311 - 538 = -227
-227 ÷ 538 = -0.42193308550185876
-0.42193308550185876 x 100 = -42.19%