42.42% is the change from 686 to 977
Calculation steps:
[( 977 - 686 ) ÷ 686] x 100 = 42.42%
Formula
Percentage change = [(977 - 686) / 686] x 100
Subtract the new number by the original number
977 - 686 = 291
291 ÷ 686 = 0.42419825072886297
0.42419825072886297 x 100 = 42.42%