311.48% is the change from 61 to 251
Calculation steps:
[( 251 - 61 ) ÷ 61] x 100 = 311.48%
Formula
Percentage change = [(251 - 61) / 61] x 100
Subtract the new number by the original number
251 - 61 = 190
190 ÷ 61 = 3.1147540983606556
3.1147540983606556 x 100 = 311.48%