204.1% is the change from 268 to 815
Calculation steps:
[( 815 - 268 ) ÷ 268] x 100 = 204.1%
Formula
Percentage change = [(815 - 268) / 268] x 100
Subtract the new number by the original number
815 - 268 = 547
547 ÷ 268 = 2.041044776119403
2.041044776119403 x 100 = 204.1%