-66.19% is the change from 139 to 47
Calculation steps:
[( 47 - 139 ) ÷ 139] x 100 = -66.19%
Formula
Percentage change = [(47 - 139) / 139] x 100
Subtract the new number by the original number
47 - 139 = -92
-92 ÷ 139 = -0.6618705035971223
-0.6618705035971223 x 100 = -66.19%