89.9% is the change from 515 to 978
Calculation steps:
[( 978 - 515 ) ÷ 515] x 100 = 89.9%
Formula
Percentage change = [(978 - 515) / 515] x 100
Subtract the new number by the original number
978 - 515 = 463
463 ÷ 515 = 0.8990291262135922
0.8990291262135922 x 100 = 89.9%