Let's calculate the weight of the statue at each step:

**Initial weight:** 250 kg

**After 1st week (30% cut away):**
250 kg - (30/100 * 250 kg) = 250 kg - 75 kg = 175 kg

**At 500 meters altitude (0.1% less due to decreased gravity):**
175 kg - (0.1/100 * 175 kg) = 175 kg - 0.175 kg = 174.825 kg

**After 2nd week (20% of the remainder cut away):**
174.825 kg - (20/100 * 174.825 kg) = 174.825 kg - 34.965 kg = 139.86 kg

**At 1000 meters altitude (0.2% less due to decreased gravity):**
139.86 kg - (0.2/100 * 139.86 kg) = 139.86 kg - 0.27972 kg = 139.58028 kg

**After 3rd week (25% of the remaining marble cut away):**
139.58028 kg - (25/100 * 139.58028 kg) = 139.58028 kg - 34.89507 kg = 104.68521 kg

**After 4th week (15% cut away):**
104.68521 kg - (15/100 * 104.68521 kg) = 104.68521 kg - 15.7027815 kg = 88.9824285 kg

**After 5th week (10% of the remainder cut away):**
88.9824285 kg - (10/100 * 88.9824285 kg) = 88.9824285 kg - 8.89824285 kg = 80.08418565 kg

**After 6th week (5% of the remaining marble cut away):**
80.08418565 kg - (5/100 * 80.08418565 kg) = 80.08418565 kg - 4.0042092825 kg = 76.0799763675 kg

**After 7th week (3% of the remainder cut away):**
76.0799763675 kg - (3/100 * 76.0799763675 kg) = 76.0799763675 kg - 2.282399290025 kg = 73.797577077475 kg

**At 2000 meters altitude (0.3% less due to the highest decrease in gravitational pull):**
73.797577077475 kg - (0.3/100 * 73.797577077475 kg) = 73.797577077475 kg - 0.221392731232425 kg = 73.5761843462426 kg

So, the final weight of the statue at each altitude is:
- At sea level (original weight): 250 kg
- At 500 meters: 174.825 kg
- At 1000 meters: 139.58028 kg
- At 2000 meters (final location): 73.5761843462426 kg

Please note that in reality, the weight of an object does not change with altitude; rather, its apparent weight changes slightly due to the variation in gravitational force. The mass of the object remains constant.
각 단계에서 동상의 무게를 계산해 보겠습니다:

**초기 무게:** 250kg

**1주차 후(30% 절단):**
250kg - (30/100 * 250kg) = 250kg - 75kg = 175kg

**해발 500미터(중력 감소로 인해 0.1% 감소):**
175kg - (0.1/100 * 175kg) = 175kg - 0.175kg = 174.825kg

**2주차 후(나머지 20% 절단):**
174.825kg - (20/100 * 174.825kg) = 174.825kg - 34.965kg = 139.86kg

**해발 1000미터(중력 감소로 인해 0.2% 감소):**
139.86kg - (0.2/100 * 139.86kg) = 139.86kg - 0.27972kg = 139.58028kg

**3주차 후(남은 대리석 25% 절단):**
139.58028kg - (25/100 * 139.58028kg) = 139.58028kg - 34.89507kg = 104.68521kg

**4주차 후(15% 절단):**
104.68521kg - (15/100 * 104.68521kg) = 104.68521kg - 15.7027815kg = 88.9824285kg

**5주차 후(나머지 10% 절단):**
88.9824285kg - (10/100 * 88.9824285kg) = 88.9824285kg - 8.89824285kg = 80.08418565kg

**6주차 후(남은 대리석 5% 절단):**
80.08418565kg - (5/100 * 80.08418565kg) = 80.08418565kg - 4.0042092825kg = 76.0799763675kg

**7주차 후(나머지 3% 절단):**
76.0799763675kg - (3/100 * 76.0799763675kg) = 76.0799763675kg - 2.282399290025kg = 73.797577077475kg

**해발 2000미터(중력 감소로 인한 감소율 최고치):**
73.797577077475kg - (0.3/100 * 73.797577077475kg) = 73.797577077475kg - 0.221392731232425kg = 73.5761843462426kg

따라서 각 고도에서 동상의 최종 무게는 다음과 같습니다:
- 해발(원래 무게): 250 kg
- 500미터: 174.825 kg
- 1000미터: 139.58028 kg
- 2000미터(최종 위치): 73.5761843462426 kg

실제로 물체의 무게는 고도에 따라 달라지는 것이 아니라 중력의 변화로 인해 겉보기 무게가 약간 달라집니다. 물체의 질량은 일정하게 유지됩니다.