69.88% is the change from 405 to 688
Calculation steps:
[( 688 - 405 ) ÷ 405] x 100 = 69.88%
Formula
Percentage change = [(688 - 405) / 405] x 100
Subtract the new number by the original number
688 - 405 = 283
283 ÷ 405 = 0.6987654320987654
0.6987654320987654 x 100 = 69.88%