-66.14% is the change from 818 to 277
Calculation steps:
[( 277 - 818 ) ÷ 818] x 100 = -66.14%
Formula
Percentage change = [(277 - 818) / 818] x 100
Subtract the new number by the original number
277 - 818 = -541
-541 ÷ 818 = -0.6613691931540342
-0.6613691931540342 x 100 = -66.14%