18.91% is the change from 238 to 283
Calculation steps:
[( 283 - 238 ) ÷ 238] x 100 = 18.91%
Formula
Percentage change = [(283 - 238) / 238] x 100
Subtract the new number by the original number
283 - 238 = 45
45 ÷ 238 = 0.18907563025210083
0.18907563025210083 x 100 = 18.91%