13857.14% is the change from 7 to 977
Calculation steps:
[( 977 - 7 ) ÷ 7] x 100 = 13857.14%
Formula
Percentage change = [(977 - 7) / 7] x 100
Subtract the new number by the original number
977 - 7 = 970
970 ÷ 7 = 138.57142857142858
138.57142857142858 x 100 = 13857.14%