6.89% is the change from 915 to 978
Calculation steps:
[( 978 - 915 ) ÷ 915] x 100 = 6.89%
Formula
Percentage change = [(978 - 915) / 915] x 100
Subtract the new number by the original number
978 - 915 = 63
63 ÷ 915 = 0.06885245901639345
0.06885245901639345 x 100 = 6.89%