276.15% is the change from 260 to 978
Calculation steps:
[( 978 - 260 ) ÷ 260] x 100 = 276.15%
Formula
Percentage change = [(978 - 260) / 260] x 100
Subtract the new number by the original number
978 - 260 = 718
718 ÷ 260 = 2.7615384615384615
2.7615384615384615 x 100 = 276.15%