214.47% is the change from 311 to 978
Calculation steps:
[( 978 - 311 ) ÷ 311] x 100 = 214.47%
Formula
Percentage change = [(978 - 311) / 311] x 100
Subtract the new number by the original number
978 - 311 = 667
667 ÷ 311 = 2.144694533762058
2.144694533762058 x 100 = 214.47%