106.3% is the change from 238 to 491
Calculation steps:
[( 491 - 238 ) ÷ 238] x 100 = 106.3%
Formula
Percentage change = [(491 - 238) / 238] x 100
Subtract the new number by the original number
491 - 238 = 253
253 ÷ 238 = 1.0630252100840336
1.0630252100840336 x 100 = 106.3%