521.57% is the change from 51 to 317
Calculation steps:
[( 317 - 51 ) ÷ 51] x 100 = 521.57%
Formula
Percentage change = [(317 - 51) / 51] x 100
Subtract the new number by the original number
317 - 51 = 266
266 ÷ 51 = 5.215686274509804
5.215686274509804 x 100 = 521.57%