-68.04% is the change from 851 to 272
Calculation steps:
[( 272 - 851 ) ÷ 851] x 100 = -68.04%
Formula
Percentage change = [(272 - 851) / 851] x 100
Subtract the new number by the original number
272 - 851 = -579
-579 ÷ 851 = -0.6803760282021152
-0.6803760282021152 x 100 = -68.04%