20.15% is the change from 814 to 978
Calculation steps:
[( 978 - 814 ) ÷ 814] x 100 = 20.15%
Formula
Percentage change = [(978 - 814) / 814] x 100
Subtract the new number by the original number
978 - 814 = 164
164 ÷ 814 = 0.20147420147420148
0.20147420147420148 x 100 = 20.15%