83.66% is the change from 257 to 472
Calculation steps:
[( 472 - 257 ) ÷ 257] x 100 = 83.66%
Formula
Percentage change = [(472 - 257) / 257] x 100
Subtract the new number by the original number
472 - 257 = 215
215 ÷ 257 = 0.8365758754863813
0.8365758754863813 x 100 = 83.66%