-69.74% is the change from 770 to 233
Calculation steps:
[( 233 - 770 ) ÷ 770] x 100 = -69.74%
Formula
Percentage change = [(233 - 770) / 770] x 100
Subtract the new number by the original number
233 - 770 = -537
-537 ÷ 770 = -0.6974025974025974
-0.6974025974025974 x 100 = -69.74%