-39.6% is the change from 697 to 421
Calculation steps:
[( 421 - 697 ) ÷ 697] x 100 = -39.6%
Formula
Percentage change = [(421 - 697) / 697] x 100
Subtract the new number by the original number
421 - 697 = -276
-276 ÷ 697 = -0.39598278335724535
-0.39598278335724535 x 100 = -39.6%