344% is the change from 150 to 666
Calculation steps:
[( 666 - 150 ) ÷ 150] x 100 = 344%
Formula
Percentage change = [(666 - 150) / 150] x 100
Subtract the new number by the original number
666 - 150 = 516
516 ÷ 150 = 3.44
3.44 x 100 = 344%
Example