-67.3% is the change from 786 to 257
Calculation steps:
[( 257 - 786 ) ÷ 786] x 100 = -67.3%
Formula
Percentage change = [(257 - 786) / 786] x 100
Subtract the new number by the original number
257 - 786 = -529
-529 ÷ 786 = -0.6730279898218829
-0.6730279898218829 x 100 = -67.3%