-86.88% is the change from 770 to 101
Calculation steps:
[( 101 - 770 ) ÷ 770] x 100 = -86.88%
Formula
Percentage change = [(101 - 770) / 770] x 100
Subtract the new number by the original number
101 - 770 = -669
-669 ÷ 770 = -0.8688311688311688
-0.8688311688311688 x 100 = -86.88%