-67.9% is the change from 813 to 261
Calculation steps:
[( 261 - 813 ) ÷ 813] x 100 = -67.9%
Formula
Percentage change = [(261 - 813) / 813] x 100
Subtract the new number by the original number
261 - 813 = -552
-552 ÷ 813 = -0.6789667896678967
-0.6789667896678967 x 100 = -67.9%