278.21% is the change from 257 to 972
Calculation steps:
[( 972 - 257 ) ÷ 257] x 100 = 278.21%
Formula
Percentage change = [(972 - 257) / 257] x 100
Subtract the new number by the original number
972 - 257 = 715
715 ÷ 257 = 2.782101167315175
2.782101167315175 x 100 = 278.21%