-79.16% is the change from 667 to 139
Calculation steps:
[( 139 - 667 ) ÷ 667] x 100 = -79.16%
Formula
Percentage change = [(139 - 667) / 667] x 100
Subtract the new number by the original number
139 - 667 = -528
-528 ÷ 667 = -0.7916041979010495
-0.7916041979010495 x 100 = -79.16%