151.11% is the change from 270 to 678
Calculation steps:
[( 678 - 270 ) ÷ 270] x 100 = 151.11%
Formula
Percentage change = [(678 - 270) / 270] x 100
Subtract the new number by the original number
678 - 270 = 408
408 ÷ 270 = 1.511111111111111
1.511111111111111 x 100 = 151.11%