-90.51% is the change from 938 to 89
Calculation steps:
[( 89 - 938 ) ÷ 938] x 100 = -90.51%
Formula
Percentage change = [(89 - 938) / 938] x 100
Subtract the new number by the original number
89 - 938 = -849
-849 ÷ 938 = -0.9051172707889126
-0.9051172707889126 x 100 = -90.51%