-70.64% is the change from 780 to 229
Calculation steps:
[( 229 - 780 ) ÷ 780] x 100 = -70.64%
Formula
Percentage change = [(229 - 780) / 780] x 100
Subtract the new number by the original number
229 - 780 = -551
-551 ÷ 780 = -0.7064102564102565
-0.7064102564102565 x 100 = -70.64%