270.45% is the change from 247 to 915
Calculation steps:
[( 915 - 247 ) ÷ 247] x 100 = 270.45%
Formula
Percentage change = [(915 - 247) / 247] x 100
Subtract the new number by the original number
915 - 247 = 668
668 ÷ 247 = 2.7044534412955468
2.7044534412955468 x 100 = 270.45%