260.99% is the change from 141 to 509
Calculation steps:
[( 509 - 141 ) ÷ 141] x 100 = 260.99%
Formula
Percentage change = [(509 - 141) / 141] x 100
Subtract the new number by the original number
509 - 141 = 368
368 ÷ 141 = 2.6099290780141846
2.6099290780141846 x 100 = 260.99%