-47.3% is the change from 797 to 420
Calculation steps:
[( 420 - 797 ) ÷ 797] x 100 = -47.3%
Formula
Percentage change = [(420 - 797) / 797] x 100
Subtract the new number by the original number
420 - 797 = -377
-377 ÷ 797 = -0.4730238393977415
-0.4730238393977415 x 100 = -47.3%