83.47% is the change from 248 to 455
Calculation steps:
[( 455 - 248 ) ÷ 248] x 100 = 83.47%
Formula
Percentage change = [(455 - 248) / 248] x 100
Subtract the new number by the original number
455 - 248 = 207
207 ÷ 248 = 0.8346774193548387
0.8346774193548387 x 100 = 83.47%