69.67% is the change from 366 to 621
Calculation steps:
[( 621 - 366 ) ÷ 366] x 100 = 69.67%
Formula
Percentage change = [(621 - 366) / 366] x 100
Subtract the new number by the original number
621 - 366 = 255
255 ÷ 366 = 0.6967213114754098
0.6967213114754098 x 100 = 69.67%