-64.98% is the change from 771 to 270
Calculation steps:
[( 270 - 771 ) ÷ 771] x 100 = -64.98%
Formula
Percentage change = [(270 - 771) / 771] x 100
Subtract the new number by the original number
270 - 771 = -501
-501 ÷ 771 = -0.6498054474708171
-0.6498054474708171 x 100 = -64.98%