-66.17% is the change from 798 to 270
Calculation steps:
[( 270 - 798 ) ÷ 798] x 100 = -66.17%
Formula
Percentage change = [(270 - 798) / 798] x 100
Subtract the new number by the original number
270 - 798 = -528
-528 ÷ 798 = -0.6616541353383458
-0.6616541353383458 x 100 = -66.17%