-72.34% is the change from 770 to 213
Calculation steps:
[( 213 - 770 ) ÷ 770] x 100 = -72.34%
Formula
Percentage change = [(213 - 770) / 770] x 100
Subtract the new number by the original number
213 - 770 = -557
-557 ÷ 770 = -0.7233766233766233
-0.7233766233766233 x 100 = -72.34%