-30.91% is the change from 770 to 532
Calculation steps:
[( 532 - 770 ) ÷ 770] x 100 = -30.91%
Formula
Percentage change = [(532 - 770) / 770] x 100
Subtract the new number by the original number
532 - 770 = -238
-238 ÷ 770 = -0.3090909090909091
-0.3090909090909091 x 100 = -30.91%