212.5% is the change from 320 to 1000
Calculation steps:
[( 1000 - 320 ) ÷ 320] x 100 = 212.5%
Formula
Percentage change = [(1000 - 320) / 320] x 100
Subtract the new number by the original number
1000 - 320 = 680
680 ÷ 320 = 2.125
2.125 x 100 = 212.5%