-78.12% is the change from 521 to 114
Calculation steps:
[( 114 - 521 ) ÷ 521] x 100 = -78.12%
Formula
Percentage change = [(114 - 521) / 521] x 100
Subtract the new number by the original number
114 - 521 = -407
-407 ÷ 521 = -0.781190019193858
-0.781190019193858 x 100 = -78.12%