243.92% is the change from 148 to 509
Calculation steps:
[( 509 - 148 ) ÷ 148] x 100 = 243.92%
Formula
Percentage change = [(509 - 148) / 148] x 100
Subtract the new number by the original number
509 - 148 = 361
361 ÷ 148 = 2.439189189189189
2.439189189189189 x 100 = 243.92%