-40.76% is the change from 709 to 420
Calculation steps:
[( 420 - 709 ) ÷ 709] x 100 = -40.76%
Formula
Percentage change = [(420 - 709) / 709] x 100
Subtract the new number by the original number
420 - 709 = -289
-289 ÷ 709 = -0.4076163610719323
-0.4076163610719323 x 100 = -40.76%