1214% is the change from 50 to 657
Calculation steps:
[( 657 - 50 ) ÷ 50] x 100 = 1214%
Formula
Percentage change = [(657 - 50) / 50] x 100
Subtract the new number by the original number
657 - 50 = 607
607 ÷ 50 = 12.14
12.14 x 100 = 1214%
Example