-36.62% is the change from 770 to 488
Calculation steps:
[( 488 - 770 ) ÷ 770] x 100 = -36.62%
Formula
Percentage change = [(488 - 770) / 770] x 100
Subtract the new number by the original number
488 - 770 = -282
-282 ÷ 770 = -0.36623376623376624
-0.36623376623376624 x 100 = -36.62%