492.86% is the change from 42 to 249
Calculation steps:
[( 249 - 42 ) ÷ 42] x 100 = 492.86%
Formula
Percentage change = [(249 - 42) / 42] x 100
Subtract the new number by the original number
249 - 42 = 207
207 ÷ 42 = 4.928571428571429
4.928571428571429 x 100 = 492.86%