-85.29% is the change from 938 to 138
Calculation steps:
[( 138 - 938 ) ÷ 938] x 100 = -85.29%
Formula
Percentage change = [(138 - 938) / 938] x 100
Subtract the new number by the original number
138 - 938 = -800
-800 ÷ 938 = -0.8528784648187633
-0.8528784648187633 x 100 = -85.29%