-70% is the change from 710 to 213
Calculation steps:
[( 213 - 710 ) ÷ 710] x 100 = -70%
Formula
Percentage change = [(213 - 710) / 710] x 100
Subtract the new number by the original number
213 - 710 = -497
-497 ÷ 710 = -0.7
-0.7 x 100 = -70%
Example