220.62% is the change from 257 to 824
Calculation steps:
[( 824 - 257 ) ÷ 257] x 100 = 220.62%
Formula
Percentage change = [(824 - 257) / 257] x 100
Subtract the new number by the original number
824 - 257 = 567
567 ÷ 257 = 2.2062256809338523
2.2062256809338523 x 100 = 220.62%