-67.93% is the change from 820 to 263
Calculation steps:
[( 263 - 820 ) ÷ 820] x 100 = -67.93%
Formula
Percentage change = [(263 - 820) / 820] x 100
Subtract the new number by the original number
263 - 820 = -557
-557 ÷ 820 = -0.6792682926829269
-0.6792682926829269 x 100 = -67.93%