-17.92% is the change from 770 to 632
Calculation steps:
[( 632 - 770 ) ÷ 770] x 100 = -17.92%
Formula
Percentage change = [(632 - 770) / 770] x 100
Subtract the new number by the original number
632 - 770 = -138
-138 ÷ 770 = -0.17922077922077922
-0.17922077922077922 x 100 = -17.92%