612.95% is the change from 139 to 991
Calculation steps:
[( 991 - 139 ) ÷ 139] x 100 = 612.95%
Formula
Percentage change = [(991 - 139) / 139] x 100
Subtract the new number by the original number
991 - 139 = 852
852 ÷ 139 = 6.129496402877698
6.129496402877698 x 100 = 612.95%