-73.42% is the change from 790 to 210
Calculation steps:
[( 210 - 790 ) ÷ 790] x 100 = -73.42%
Formula
Percentage change = [(210 - 790) / 790] x 100
Subtract the new number by the original number
210 - 790 = -580
-580 ÷ 790 = -0.7341772151898734
-0.7341772151898734 x 100 = -73.42%