-35.33% is the change from 784 to 507
Calculation steps:
[( 507 - 784 ) ÷ 784] x 100 = -35.33%
Formula
Percentage change = [(507 - 784) / 784] x 100
Subtract the new number by the original number
507 - 784 = -277
-277 ÷ 784 = -0.35331632653061223
-0.35331632653061223 x 100 = -35.33%