-66.29% is the change from 801 to 270
Calculation steps:
[( 270 - 801 ) ÷ 801] x 100 = -66.29%
Formula
Percentage change = [(270 - 801) / 801] x 100
Subtract the new number by the original number
270 - 801 = -531
-531 ÷ 801 = -0.6629213483146067
-0.6629213483146067 x 100 = -66.29%