409.8% is the change from 51 to 260
Calculation steps:
[( 260 - 51 ) ÷ 51] x 100 = 409.8%
Formula
Percentage change = [(260 - 51) / 51] x 100
Subtract the new number by the original number
260 - 51 = 209
209 ÷ 51 = 4.098039215686274
4.098039215686274 x 100 = 409.8%