-58.89% is the change from 647 to 266
Calculation steps:
[( 266 - 647 ) ÷ 647] x 100 = -58.89%
Formula
Percentage change = [(266 - 647) / 647] x 100
Subtract the new number by the original number
266 - 647 = -381
-381 ÷ 647 = -0.58887171561051
-0.58887171561051 x 100 = -58.89%