-38.99% is the change from 690 to 421
Calculation steps:
[( 421 - 690 ) ÷ 690] x 100 = -38.99%
Formula
Percentage change = [(421 - 690) / 690] x 100
Subtract the new number by the original number
421 - 690 = -269
-269 ÷ 690 = -0.3898550724637681
-0.3898550724637681 x 100 = -38.99%