644.26% is the change from 61 to 454
Calculation steps:
[( 454 - 61 ) ÷ 61] x 100 = 644.26%
Formula
Percentage change = [(454 - 61) / 61] x 100
Subtract the new number by the original number
454 - 61 = 393
393 ÷ 61 = 6.442622950819672
6.442622950819672 x 100 = 644.26%