-58.74% is the change from 778 to 321
Calculation steps:
[( 321 - 778 ) ÷ 778] x 100 = -58.74%
Formula
Percentage change = [(321 - 778) / 778] x 100
Subtract the new number by the original number
321 - 778 = -457
-457 ÷ 778 = -0.5874035989717223
-0.5874035989717223 x 100 = -58.74%