33.66% is the change from 612 to 818
Calculation steps:
[( 818 - 612 ) ÷ 612] x 100 = 33.66%
Formula
Percentage change = [(818 - 612) / 612] x 100
Subtract the new number by the original number
818 - 612 = 206
206 ÷ 612 = 0.3366013071895425
0.3366013071895425 x 100 = 33.66%