-57.78% is the change from 90 to 38
Calculation steps:
[( 38 - 90 ) ÷ 90] x 100 = -57.78%
Formula
Percentage change = [(38 - 90) / 90] x 100
Subtract the new number by the original number
38 - 90 = -52
-52 ÷ 90 = -0.5777777777777777
-0.5777777777777777 x 100 = -57.78%