490.2% is the change from 51 to 301
Calculation steps:
[( 301 - 51 ) ÷ 51] x 100 = 490.2%
Formula
Percentage change = [(301 - 51) / 51] x 100
Subtract the new number by the original number
301 - 51 = 250
250 ÷ 51 = 4.901960784313726
4.901960784313726 x 100 = 490.2%