1232% is the change from 50 to 666
Calculation steps:
[( 666 - 50 ) ÷ 50] x 100 = 1232%
Formula
Percentage change = [(666 - 50) / 50] x 100
Subtract the new number by the original number
666 - 50 = 616
616 ÷ 50 = 12.32
12.32 x 100 = 1232%
Example