-35.32% is the change from 770 to 498
Calculation steps:
[( 498 - 770 ) ÷ 770] x 100 = -35.32%
Formula
Percentage change = [(498 - 770) / 770] x 100
Subtract the new number by the original number
498 - 770 = -272
-272 ÷ 770 = -0.35324675324675325
-0.35324675324675325 x 100 = -35.32%