-18.57% is the change from 770 to 627
Calculation steps:
[( 627 - 770 ) ÷ 770] x 100 = -18.57%
Formula
Percentage change = [(627 - 770) / 770] x 100
Subtract the new number by the original number
627 - 770 = -143
-143 ÷ 770 = -0.18571428571428572
-0.18571428571428572 x 100 = -18.57%