-40.17% is the change from 702 to 420
Calculation steps:
[( 420 - 702 ) ÷ 702] x 100 = -40.17%
Formula
Percentage change = [(420 - 702) / 702] x 100
Subtract the new number by the original number
420 - 702 = -282
-282 ÷ 702 = -0.4017094017094017
-0.4017094017094017 x 100 = -40.17%