-62.21% is the change from 770 to 291
Calculation steps:
[( 291 - 770 ) ÷ 770] x 100 = -62.21%
Formula
Percentage change = [(291 - 770) / 770] x 100
Subtract the new number by the original number
291 - 770 = -479
-479 ÷ 770 = -0.6220779220779221
-0.6220779220779221 x 100 = -62.21%