172.02% is the change from 243 to 661
Calculation steps:
[( 661 - 243 ) ÷ 243] x 100 = 172.02%
Formula
Percentage change = [(661 - 243) / 243] x 100
Subtract the new number by the original number
661 - 243 = 418
418 ÷ 243 = 1.7201646090534979
1.7201646090534979 x 100 = 172.02%