-70.21% is the change from 678 to 202
Calculation steps:
[( 202 - 678 ) ÷ 678] x 100 = -70.21%
Formula
Percentage change = [(202 - 678) / 678] x 100
Subtract the new number by the original number
202 - 678 = -476
-476 ÷ 678 = -0.7020648967551623
-0.7020648967551623 x 100 = -70.21%