-72.2% is the change from 777 to 216
Calculation steps:
[( 216 - 777 ) ÷ 777] x 100 = -72.2%
Formula
Percentage change = [(216 - 777) / 777] x 100
Subtract the new number by the original number
216 - 777 = -561
-561 ÷ 777 = -0.722007722007722
-0.722007722007722 x 100 = -72.2%