412.4% is the change from 129 to 661
Calculation steps:
[( 661 - 129 ) ÷ 129] x 100 = 412.4%
Formula
Percentage change = [(661 - 129) / 129] x 100
Subtract the new number by the original number
661 - 129 = 532
532 ÷ 129 = 4.124031007751938
4.124031007751938 x 100 = 412.4%