-59.61% is the change from 770 to 311
Calculation steps:
[( 311 - 770 ) ÷ 770] x 100 = -59.61%
Formula
Percentage change = [(311 - 770) / 770] x 100
Subtract the new number by the original number
311 - 770 = -459
-459 ÷ 770 = -0.5961038961038961
-0.5961038961038961 x 100 = -59.61%