47.86% is the change from 257 to 380
Calculation steps:
[( 380 - 257 ) ÷ 257] x 100 = 47.86%
Formula
Percentage change = [(380 - 257) / 257] x 100
Subtract the new number by the original number
380 - 257 = 123
123 ÷ 257 = 0.4785992217898833
0.4785992217898833 x 100 = 47.86%