-88.52% is the change from 331 to 38
Calculation steps:
[( 38 - 331 ) ÷ 331] x 100 = -88.52%
Formula
Percentage change = [(38 - 331) / 331] x 100
Subtract the new number by the original number
38 - 331 = -293
-293 ÷ 331 = -0.8851963746223565
-0.8851963746223565 x 100 = -88.52%