275.77% is the change from 260 to 977
Calculation steps:
[( 977 - 260 ) ÷ 260] x 100 = 275.77%
Formula
Percentage change = [(977 - 260) / 260] x 100
Subtract the new number by the original number
977 - 260 = 717
717 ÷ 260 = 2.7576923076923077
2.7576923076923077 x 100 = 275.77%