1256% is the change from 50 to 678
Calculation steps:
[( 678 - 50 ) ÷ 50] x 100 = 1256%
Formula
Percentage change = [(678 - 50) / 50] x 100
Subtract the new number by the original number
678 - 50 = 628
628 ÷ 50 = 12.56
12.56 x 100 = 1256%
Example