-82.92% is the change from 808 to 138
Calculation steps:
[( 138 - 808 ) ÷ 808] x 100 = -82.92%
Formula
Percentage change = [(138 - 808) / 808] x 100
Subtract the new number by the original number
138 - 808 = -670
-670 ÷ 808 = -0.8292079207920792
-0.8292079207920792 x 100 = -82.92%