38.73% is the change from 612 to 849
Calculation steps:
[( 849 - 612 ) ÷ 612] x 100 = 38.73%
Formula
Percentage change = [(849 - 612) / 612] x 100
Subtract the new number by the original number
849 - 612 = 237
237 ÷ 612 = 0.3872549019607843
0.3872549019607843 x 100 = 38.73%