401.64% is the change from 61 to 306
Calculation steps:
[( 306 - 61 ) ÷ 61] x 100 = 401.64%
Formula
Percentage change = [(306 - 61) / 61] x 100
Subtract the new number by the original number
306 - 61 = 245
245 ÷ 61 = 4.016393442622951
4.016393442622951 x 100 = 401.64%