38.88% is the change from 661 to 918
Calculation steps:
[( 918 - 661 ) ÷ 661] x 100 = 38.88%
Formula
Percentage change = [(918 - 661) / 661] x 100
Subtract the new number by the original number
918 - 661 = 257
257 ÷ 661 = 0.3888048411497731
0.3888048411497731 x 100 = 38.88%