-64.84% is the change from 768 to 270
Calculation steps:
[( 270 - 768 ) ÷ 768] x 100 = -64.84%
Formula
Percentage change = [(270 - 768) / 768] x 100
Subtract the new number by the original number
270 - 768 = -498
-498 ÷ 768 = -0.6484375
-0.6484375 x 100 = -64.84%