500.72% is the change from 138 to 829
Calculation steps:
[( 829 - 138 ) ÷ 138] x 100 = 500.72%
Formula
Percentage change = [(829 - 138) / 138] x 100
Subtract the new number by the original number
829 - 138 = 691
691 ÷ 138 = 5.007246376811594
5.007246376811594 x 100 = 500.72%