623.36% is the change from 137 to 991
Calculation steps:
[( 991 - 137 ) ÷ 137] x 100 = 623.36%
Formula
Percentage change = [(991 - 137) / 137] x 100
Subtract the new number by the original number
991 - 137 = 854
854 ÷ 137 = 6.233576642335766
6.233576642335766 x 100 = 623.36%