37.75% is the change from 612 to 843
Calculation steps:
[( 843 - 612 ) ÷ 612] x 100 = 37.75%
Formula
Percentage change = [(843 - 612) / 612] x 100
Subtract the new number by the original number
843 - 612 = 231
231 ÷ 612 = 0.37745098039215685
0.37745098039215685 x 100 = 37.75%