687.9% is the change from 124 to 977
Calculation steps:
[( 977 - 124 ) ÷ 124] x 100 = 687.9%
Formula
Percentage change = [(977 - 124) / 124] x 100
Subtract the new number by the original number
977 - 124 = 853
853 ÷ 124 = 6.879032258064516
6.879032258064516 x 100 = 687.9%