36.98% is the change from 668 to 915
Calculation steps:
[( 915 - 668 ) ÷ 668] x 100 = 36.98%
Formula
Percentage change = [(915 - 668) / 668] x 100
Subtract the new number by the original number
915 - 668 = 247
247 ÷ 668 = 0.36976047904191617
0.36976047904191617 x 100 = 36.98%