663.28% is the change from 128 to 977
Calculation steps:
[( 977 - 128 ) ÷ 128] x 100 = 663.28%
Formula
Percentage change = [(977 - 128) / 128] x 100
Subtract the new number by the original number
977 - 128 = 849
849 ÷ 128 = 6.6328125
6.6328125 x 100 = 663.28%