289.86% is the change from 138 to 538
Calculation steps:
[( 538 - 138 ) ÷ 138] x 100 = 289.86%
Formula
Percentage change = [(538 - 138) / 138] x 100
Subtract the new number by the original number
538 - 138 = 400
400 ÷ 138 = 2.898550724637681
2.898550724637681 x 100 = 289.86%