42% is the change from 431 to 612
Calculation steps:
[( 612 - 431 ) ÷ 431] x 100 = 42%
Formula
Percentage change = [(612 - 431) / 431] x 100
Subtract the new number by the original number
612 - 431 = 181
181 ÷ 431 = 0.419953596287703
0.419953596287703 x 100 = 42%