307.08% is the change from 240 to 977
Calculation steps:
[( 977 - 240 ) ÷ 240] x 100 = 307.08%
Formula
Percentage change = [(977 - 240) / 240] x 100
Subtract the new number by the original number
977 - 240 = 737
737 ÷ 240 = 3.0708333333333333
3.0708333333333333 x 100 = 307.08%