Can anyone help me with this question for algebra ??? "A population of Wombats is growing at a constant percent rate. If the population on January 1st is 1012 and a year later is 1080, what is its yearly percent growth rate to the nearest tenth of a percent?"

Long division setup showing an incomplete calculation. 12 is in the divisor, 6839 is in the dividend, and 5 hundreds and 6 tens is written in the quotient. 6000 is subtracted from 6839 to give 839. an unknown value represented by a box is being subtracted from 839. what number should be placed in the box to complete the division calculation?