68.45% is the change from 580 to 977
Calculation steps:
[( 977 - 580 ) ÷ 580] x 100 = 68.45%
Formula
Percentage change = [(977 - 580) / 580] x 100
Subtract the new number by the original number
977 - 580 = 397
397 ÷ 580 = 0.6844827586206896
0.6844827586206896 x 100 = 68.45%